76088257281 has 15 divisors (see below), whose sum is σ = 113666413971. Its totient is φ = 50723849808.

The previous prime is 76088257207. The next prime is 76088257283. The reversal of 76088257281 is 18275288067.

The square root of 76088257281 is 275841.

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

76088257281 is a `hidden beast` number, since 7 + 60 + 8 + 8 + 2 + 572 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1428159681 + 74660097600 = 37791^2 + 273240^2 .

It is not a de Polignac number, because 76088257281 - 2⁷ = 76088257153 is a prime.

It is a super-2 number, since 2×76088257281² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76088257283) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2467245 + ... + 2497893.

Almost surely, 2^76088257281 is an apocalyptic number.

76088257281 is the 275841-st square number.

76088257281 is the 137921-st centered octagonal number.

It is an amenable number.

76088257281 is a deficient number, since it is larger than the sum of its proper divisors (37578156690).

76088257281 is an frugal number, since it uses more digits than its factorization.

76088257281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61310 (or 30652 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The spelling of 76088257281 in words is "seventy-six billion, eighty-eight million, two hundred fifty-seven thousand, two hundred eighty-one".