2912320688 has 20 divisors (see below), whose sum is σ = 5645159520. Its totient is φ = 1455505344.

The previous prime is 2912320687. The next prime is 2912320709. The reversal of 2912320688 is 8860232192.

It is a super-2 number, since 2×2912320688² = 16963223579505586688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2912320687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3203 + ... + 76386.

It is an arithmetic number, because the mean of its divisors is an integer number (282257976).

Almost surely, 2^2912320688 is an apocalyptic number.

It is an amenable number.

2912320688 is a deficient number, since it is larger than the sum of its proper divisors (2732838832).

2912320688 is a wasteful number, since it uses less digits than its factorization.

2912320688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81884 (or 81878 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 2912320688 is about 53965.9215431368. The cubic root of 2912320688 is about 1428.0598148855.

The spelling of 2912320688 in words is "two billion, nine hundred twelve million, three hundred twenty thousand, six hundred eighty-eight".