77013205004 has 6 divisors (see below), whose sum is σ = 134773108764. Its totient is φ = 38506602500.

The previous prime is 77013204971. The next prime is 77013205021. The reversal of 77013205004 is 40050231077.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9626650622 + ... + 9626650629.

It is an arithmetic number, because the mean of its divisors is an integer number (22462184794).

Almost surely, 2^77013205004 is an apocalyptic number.

It is an amenable number.

77013205004 is a deficient number, since it is larger than the sum of its proper divisors (57759903760).

77013205004 is a wasteful number, since it uses less digits than its factorization.

77013205004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19253301255 (or 19253301253 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The spelling of 77013205004 in words is "seventy-seven billion, thirteen million, two hundred five thousand, four".