64892737196 has 24 divisors (see below), whose sum is σ = 129811965696. Its totient is φ = 27805496400.

The previous prime is 64892737177. The next prime is 64892737219. The reversal of 64892737196 is 69173729846.

It is a super-2 number, since 2×64892737196² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95426 + ... + 372681.

It is an arithmetic number, because the mean of its divisors is an integer number (5408831904).

Almost surely, 2^64892737196 is an apocalyptic number.

It is an amenable number.

64892737196 is an abundant number, since it is smaller than the sum of its proper divisors (64919228500).

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

64892737196 is a wasteful number, since it uses less digits than its factorization.

64892737196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473069 (or 473067 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 62.

The spelling of 64892737196 in words is "sixty-four billion, eight hundred ninety-two million, seven hundred thirty-seven thousand, one hundred ninety-six".