64080279520 has 48 divisors (see below), whose sum is σ = 152264810880. Its totient is φ = 25483938304.

The previous prime is 64080279511. The next prime is 64080279533. The reversal of 64080279520 is 2597208046.

It is a super-2 number, since 2×64080279520² (a number of 22 digits) contains 22 as substring.

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, 1129840 + ... + 1185199.

It is an arithmetic number, because the mean of its divisors is an integer number (3172183560).

Almost surely, 2^64080279520 is an apocalyptic number.

It is an amenable number.

64080279520 is an abundant number, since it is smaller than the sum of its proper divisors (88184531360).

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

64080279520 is a wasteful number, since it uses less digits than its factorization.

64080279520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315227 (or 2315219 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 64080279520 in words is "sixty-four billion, eighty million, two hundred seventy-nine thousand, five hundred twenty".