2376434981761 has 9 divisors (see below), whose sum is σ = 2403575281993. Its totient is φ = 2349597807040.

The previous prime is 2376434981749. The next prime is 2376434981777. The reversal of 2376434981761 is 1671894346732.

The square root of 2376434981761 is 1541569.

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

It can be written as a sum of positive squares in 4 ways, for example, as 674975621761 + 1701459360000 = 821569^2 + 1304400^2 .

It is not a de Polignac number, because 2376434981761 - 2¹³ = 2376434973569 is a prime.

It is a super-2 number, since 2×2376434981761² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2376434981761.

It is not an unprimeable number, because it can be changed into a prime (2376434981741) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 137190981 + ... + 137208301.

Almost surely, 2^{2376434981761} is an apocalyptic number.

2376434981761 is the 1541569-th square number.

2376434981761 is the 770785-th centered octagonal number.

It is an amenable number.

2376434981761 is a deficient number, since it is larger than the sum of its proper divisors (27140300232).

2376434981761 is an frugal number, since it uses more digits than its factorization.

2376434981761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34820 (or 17410 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 61.

The spelling of 2376434981761 in words is "two trillion, three hundred seventy-six billion, four hundred thirty-four million, nine hundred eighty-one thousand, seven hundred sixty-one".