64677572352 has 108 divisors (see below), whose sum is σ = 191521675800. Its totient is φ = 20976482304.

The previous prime is 64677572347. The next prime is 64677572353. The reversal of 64677572352 is 25327577646.

It is a happy number.

64677572352 is a `hidden beast` number, since 6 + 4 + 67 + 7 + 572 + 3 + 5 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64677572353) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 294102 + ... + 464597.

It is an arithmetic number, because the mean of its divisors is an integer number (1773348850).

Almost surely, 2^64677572352 is an apocalyptic number.

It is an amenable number.

64677572352 is an abundant number, since it is smaller than the sum of its proper divisors (126844103448).

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

64677572352 is a wasteful number, since it uses less digits than its factorization.

64677572352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758758 (or 758741 counting only the distinct ones).

The product of its digits is 14817600, while the sum is 54.

The spelling of 64677572352 in words is "sixty-four billion, six hundred seventy-seven million, five hundred seventy-two thousand, three hundred fifty-two".