276402694881769 has 3 divisors (see below), whose sum is σ = 276402711507133. Its totient is φ = 276402678256406.

The previous prime is 276402694881757. The next prime is 276402694881823. The reversal of 276402694881769 is 967188496204672.

The square root of 276402694881769 is 16625363.

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 not a de Polignac number, because 276402694881769 - 2¹³ = 276402694873577 is a prime.

It is a super-2 number, since 2×276402694881769² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (276402694801769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8312682 + ... + 24938044.

Almost surely, 2^{276402694881769} is an apocalyptic number.

276402694881769 is the 16625363-rd square number.

276402694881769 is the 8312682-nd centered octagonal number.

It is an amenable number.

276402694881769 is a deficient number, since it is larger than the sum of its proper divisors (16625364).

276402694881769 is an frugal number, since it uses more digits than its factorization.

276402694881769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33250726 (or 16625363 counting only the distinct ones).

The product of its (nonzero) digits is 3511517184, while the sum is 79.

The spelling of 276402694881769 in words is "two hundred seventy-six trillion, four hundred two billion, six hundred ninety-four million, eight hundred eighty-one thousand, seven hundred sixty-nine".