2692687365481 has 3 divisors (see below), whose sum is σ = 2692689006423. Its totient is φ = 2692685724540.

The previous prime is 2692687365469. The next prime is 2692687365493. The reversal of 2692687365481 is 1845637862962.

The square root of 2692687365481 is 1640941.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2692687365469) and next prime (2692687365493).

It can be written as a sum of positive squares in only one way, i.e., 1054952897881 + 1637734467600 = 1027109^2 + 1279740^2 .

It is not a de Polignac number, because 2692687365481 - 2¹³ = 2692687357289 is a prime.

It is a super-2 number, since 2×2692687365481² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2692687365451) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 820471 + ... + 2461411.

It is an arithmetic number, because the mean of its divisors is an integer number (897563002141).

Almost surely, 2^{2692687365481} is an apocalyptic number.

2692687365481 is the 1640941-st square number.

2692687365481 is the 820471-st centered octagonal number.

It is an amenable number.

2692687365481 is a deficient number, since it is larger than the sum of its proper divisors (1640942).

2692687365481 is an frugal number, since it uses more digits than its factorization.

2692687365481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281882 (or 1640941 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 67.

The spelling of 2692687365481 in words is "two trillion, six hundred ninety-two billion, six hundred eighty-seven million, three hundred sixty-five thousand, four hundred eighty-one".