77907555006 has 32 divisors (see below), whose sum is σ = 163920067200. Its totient is φ = 24648714720.

The previous prime is 77907554993. The next prime is 77907555097. The reversal of 77907555006 is 60055570977.

It is a self number, because there is not a number n which added to its sum of digits gives 77907555006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3784180 + ... + 3804711.

It is an arithmetic number, because the mean of its divisors is an integer number (5122502100).

Almost surely, 2^77907555006 is an apocalyptic number.

77907555006 is an abundant number, since it is smaller than the sum of its proper divisors (86012512194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77907555006 is a wasteful number, since it uses less digits than its factorization.

77907555006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7588984.

The product of its (nonzero) digits is 2315250, while the sum is 51.

The spelling of 77907555006 in words is "seventy-seven billion, nine hundred seven million, five hundred fifty-five thousand, six".