76658807690 has 16 divisors (see below), whose sum is σ = 137990084328. Its totient is φ = 30662582976.

The previous prime is 76658807689. The next prime is 76658807711. The reversal of 76658807690 is 9670885667.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 74238266089 + 2420541601 = 272467^2 + 49199^2 .

It is a super-2 number, since 2×76658807690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293384 + ... + 489276.

Almost surely, 2^76658807690 is an apocalyptic number.

76658807690 is a deficient number, since it is larger than the sum of its proper divisors (61331276638).

76658807690 is a wasteful number, since it uses less digits than its factorization.

76658807690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235033.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 76658807690 in words is "seventy-six billion, six hundred fifty-eight million, eight hundred seven thousand, six hundred ninety".