64757875998 has 16 divisors (see below), whose sum is σ = 135146871936. Its totient is φ = 20647438680.

The previous prime is 64757875979. The next prime is 64757875999. The reversal of 64757875998 is 89957875746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64757875999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234629848 + ... + 234630123.

It is an arithmetic number, because the mean of its divisors is an integer number (8446679496).

Almost surely, 2^64757875998 is an apocalyptic number.

64757875998 is an abundant number, since it is smaller than the sum of its proper divisors (70388995938).

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

64757875998 is a wasteful number, since it uses less digits than its factorization.

64757875998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469259999.

The product of its digits is 1066867200, while the sum is 75.

The spelling of 64757875998 in words is "sixty-four billion, seven hundred fifty-seven million, eight hundred seventy-five thousand, nine hundred ninety-eight".