64530063954 has 24 divisors (see below), whose sum is σ = 139873658652. Its totient is φ = 21501018240.

The previous prime is 64530063931. The next prime is 64530063973. The reversal of 64530063954 is 45936003546.

64530063954 is a `hidden beast` number, since 6 + 4 + 5 + 3 + 0 + 0 + 639 + 5 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52589038329 + 11941025625 = 229323^2 + 109275^2 .

It is a super-2 number, since 2×64530063954² (a number of 22 digits) contains 22 as substring.

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, 705987 + ... + 792134.

Almost surely, 2^64530063954 is an apocalyptic number.

64530063954 is an abundant number, since it is smaller than the sum of its proper divisors (75343594698).

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

64530063954 is a wasteful number, since it uses less digits than its factorization.

64530063954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500522 (or 1500519 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 64530063954 in words is "sixty-four billion, five hundred thirty million, sixty-three thousand, nine hundred fifty-four".