77090702730 has 32 divisors (see below), whose sum is σ = 185671479744. Its totient is φ = 20484877056.

The previous prime is 77090702707. The next prime is 77090702737. The reversal of 77090702730 is 3720709077.

It is not an unprimeable number, because it can be changed into a prime (77090702737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4531599 + ... + 4548578.

It is an arithmetic number, because the mean of its divisors is an integer number (5802233742).

Almost surely, 2^77090702730 is an apocalyptic number.

77090702730 is an abundant number, since it is smaller than the sum of its proper divisors (108580777014).

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

77090702730 is a wasteful number, since it uses less digits than its factorization.

77090702730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9080470.

The product of its (nonzero) digits is 129654, while the sum is 42.

The spelling of 77090702730 in words is "seventy-seven billion, ninety million, seven hundred two thousand, seven hundred thirty".