67604640676 has 12 divisors (see below), whose sum is σ = 118309950108. Its totient is φ = 33801797792.

The previous prime is 67604640659. The next prime is 67604640683.

It is a happy number.

67604640676 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 21778675776 + 45825964900 = 147576^2 + 214070^2 .

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, 399450 + ... + 542926.

It is an arithmetic number, because the mean of its divisors is an integer number (9859162509).

Almost surely, 2^67604640676 is an apocalyptic number.

It is an amenable number.

67604640676 is a deficient number, since it is larger than the sum of its proper divisors (50705309432).

67604640676 is a wasteful number, since it uses less digits than its factorization.

67604640676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261278 (or 261276 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 52.

The spelling of 67604640676 in words is "sixty-seven billion, six hundred four million, six hundred forty thousand, six hundred seventy-six".