77806872130 has 64 divisors (see below), whose sum is σ = 152219652480. Its totient is φ = 28464016896.

The previous prime is 77806872119. The next prime is 77806872167. The reversal of 77806872130 is 3127860877.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9446494 + ... + 9454726.

It is an arithmetic number, because the mean of its divisors is an integer number (2378432070).

Almost surely, 2^77806872130 is an apocalyptic number.

77806872130 is a deficient number, since it is larger than the sum of its proper divisors (74412780350).

77806872130 is a wasteful number, since it uses less digits than its factorization.

77806872130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8915.

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 77806872130 in words is "seventy-seven billion, eight hundred six million, eight hundred seventy-two thousand, one hundred thirty".