64913984192 has 28 divisors (see below), whose sum is σ = 133255542480. Its totient is φ = 31337784576.

The previous prime is 64913984183. The next prime is 64913984231. The reversal of 64913984192 is 29148931946.

It is an unprimeable number.

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, 17485748 + ... + 17489459.

Almost surely, 2^64913984192 is an apocalyptic number.

It is an amenable number.

64913984192 is an abundant number, since it is smaller than the sum of its proper divisors (68341558288).

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

64913984192 is a wasteful number, since it uses less digits than its factorization.

64913984192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34975248 (or 34975238 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 56.

The spelling of 64913984192 in words is "sixty-four billion, nine hundred thirteen million, nine hundred eighty-four thousand, one hundred ninety-two".