64900749999192 has 16 divisors (see below), whose sum is σ = 162251874998040. Its totient is φ = 21633583333056.

The previous prime is 64900749999179. The next prime is 64900749999193. The reversal of 64900749999192 is 29199994700946.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64900749999193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352098958293 + ... + 1352098958340.

Almost surely, 2^{64900749999192} is an apocalyptic number.

It is an amenable number.

64900749999192 is an abundant number, since it is smaller than the sum of its proper divisors (97351124998848).

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

64900749999192 is a wasteful number, since it uses less digits than its factorization.

64900749999192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704197916642 (or 2704197916638 counting only the distinct ones).

The product of its (nonzero) digits is 714256704, while the sum is 78.

The spelling of 64900749999192 in words is "sixty-four trillion, nine hundred billion, seven hundred forty-nine million, nine hundred ninety-nine thousand, one hundred ninety-two".