64929372347 has 32 divisors (see below), whose sum is σ = 78054451200. Its totient is φ = 52807265280.

The previous prime is 64929372289. The next prime is 64929372349. The reversal of 64929372347 is 74327392946.

It is not a de Polignac number, because 64929372347 - 2⁸ = 64929372091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64929372292 and 64929372301.

It is not an unprimeable number, because it can be changed into a prime (64929372349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11306897 + ... + 11312637.

It is an arithmetic number, because the mean of its divisors is an integer number (2439201600).

Almost surely, 2^64929372347 is an apocalyptic number.

64929372347 is a deficient number, since it is larger than the sum of its proper divisors (13125078853).

64929372347 is a wasteful number, since it uses less digits than its factorization.

64929372347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6323.

The product of its digits is 13716864, while the sum is 56.

The spelling of 64929372347 in words is "sixty-four billion, nine hundred twenty-nine million, three hundred seventy-two thousand, three hundred forty-seven".