77156232004 has 12 divisors (see below), whose sum is σ = 142129901200. Its totient is φ = 36547688808.

The previous prime is 77156232001. The next prime is 77156232007. The reversal of 77156232004 is 40023265177.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (77156232001) and next prime (77156232007).

It is not an unprimeable number, because it can be changed into a prime (77156232001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507606714 + ... + 507606865.

Almost surely, 2^77156232004 is an apocalyptic number.

It is an amenable number.

77156232004 is a deficient number, since it is larger than the sum of its proper divisors (64973669196).

77156232004 is a wasteful number, since it uses less digits than its factorization.

77156232004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015213602 (or 1015213600 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 77156232004 in words is "seventy-seven billion, one hundred fifty-six million, two hundred thirty-two thousand, four".