77220793064 has 48 divisors (see below), whose sum is σ = 153873017280. Its totient is φ = 36323598080.

The previous prime is 77220793051. The next prime is 77220793121. The reversal of 77220793064 is 46039702277.

It is a super-2 number, since 2×77220793064² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6761519 + ... + 6772929.

It is an arithmetic number, because the mean of its divisors is an integer number (3205687860).

Almost surely, 2^77220793064 is an apocalyptic number.

It is an amenable number.

77220793064 is a deficient number, since it is larger than the sum of its proper divisors (76652224216).

77220793064 is a wasteful number, since it uses less digits than its factorization.

77220793064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14378 (or 14357 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 47.

The spelling of 77220793064 in words is "seventy-seven billion, two hundred twenty million, seven hundred ninety-three thousand, sixty-four".