64577130852 has 192 divisors, whose sum is σ = 176694545664. Its totient is φ = 18173706240.

The previous prime is 64577130851. The next prime is 64577130907. The reversal of 64577130852 is 25803177546.

It is not an unprimeable number, because it can be changed into a prime (64577130851) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31857463 + ... + 31859489.

It is an arithmetic number, because the mean of its divisors is an integer number (920284092).

Almost surely, 2^64577130852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64577130852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88347272832).

64577130852 is an abundant number, since it is smaller than the sum of its proper divisors (112117414812).

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

64577130852 is a wasteful number, since it uses less digits than its factorization.

64577130852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398 (or 2396 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 64577130852 in words is "sixty-four billion, five hundred seventy-seven million, one hundred thirty thousand, eight hundred fifty-two".