76521087268 has 12 divisors (see below), whose sum is σ = 133914322332. Its totient is φ = 38259852320.

The previous prime is 76521087257. The next prime is 76521087281. The reversal of 76521087268 is 86278012567.

It can be written as a sum of positive squares in 2 ways, for example, as 66058252324 + 10462834944 = 257018^2 + 102288^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138558 + ... + 415018.

It is an arithmetic number, because the mean of its divisors is an integer number (11159526861).

Almost surely, 2^76521087268 is an apocalyptic number.

It is an amenable number.

76521087268 is a deficient number, since it is larger than the sum of its proper divisors (57393235064).

76521087268 is a wasteful number, since it uses less digits than its factorization.

76521087268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345662 (or 345660 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 76521087268 in words is "seventy-six billion, five hundred twenty-one million, eighty-seven thousand, two hundred sixty-eight".