64232510540 has 48 divisors (see below), whose sum is σ = 147761548704. Its totient is φ = 23260339200.

The previous prime is 64232510509. The next prime is 64232510591. The reversal of 64232510540 is 4501523246.

64232510540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64232510540² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64232510497 and 64232510506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552719 + ... + 658758.

It is an arithmetic number, because the mean of its divisors is an integer number (3078365598).

Almost surely, 2^64232510540 is an apocalyptic number.

It is an amenable number.

64232510540 is an abundant number, since it is smaller than the sum of its proper divisors (83529038164).

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

64232510540 is a wasteful number, since it uses less digits than its factorization.

64232510540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211738 (or 1211736 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 64232510540 in words is "sixty-four billion, two hundred thirty-two million, five hundred ten thousand, five hundred forty".