64071521464630 has 16 divisors (see below), whose sum is σ = 115356009636720. Its totient is φ = 25622548363552.

The previous prime is 64071521464553. The next prime is 64071521464757. The reversal of 64071521464630 is 3646412517046.

It is a congruent number.

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, 757483384 + ... + 757567963.

It is an arithmetic number, because the mean of its divisors is an integer number (7209750602295).

Almost surely, 2^{64071521464630} is an apocalyptic number.

64071521464630 is a deficient number, since it is larger than the sum of its proper divisors (51284488172090).

64071521464630 is a wasteful number, since it uses less digits than its factorization.

64071521464630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515055583.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 64071521464630 in words is "sixty-four trillion, seventy-one billion, five hundred twenty-one million, four hundred sixty-four thousand, six hundred thirty".