64234813344352 has 72 divisors (see below), whose sum is σ = 147138335968680. Its totient is φ = 27523752076800.

The previous prime is 64234813344337. The next prime is 64234813344479. The reversal of 64234813344352 is 25344331843246.

It is a super-2 number, since 2×64234813344352² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64234813344352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3864724 + ... + 11975212.

It is an arithmetic number, because the mean of its divisors is an integer number (2043587999565).

Almost surely, 2^{64234813344352} is an apocalyptic number.

It is an amenable number.

64234813344352 is an abundant number, since it is smaller than the sum of its proper divisors (82903522624328).

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

64234813344352 is a wasteful number, since it uses less digits than its factorization.

64234813344352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8115564 (or 8115549 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 52.

The spelling of 64234813344352 in words is "sixty-four trillion, two hundred thirty-four billion, eight hundred thirteen million, three hundred forty-four thousand, three hundred fifty-two".