64832391488 has 28 divisors (see below), whose sum is σ = 129298293600. Its totient is φ = 32253293952.

The previous prime is 64832391473. The next prime is 64832391517. The reversal of 64832391488 is 88419323846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2532506 + ... + 2557977.

It is an arithmetic number, because the mean of its divisors is an integer number (4617796200).

Almost surely, 2^64832391488 is an apocalyptic number.

It is an amenable number.

64832391488 is a deficient number, since it is larger than the sum of its proper divisors (64465902112).

64832391488 is a wasteful number, since it uses less digits than its factorization.

64832391488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090694 (or 5090684 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 56.

The spelling of 64832391488 in words is "sixty-four billion, eight hundred thirty-two million, three hundred ninety-one thousand, four hundred eighty-eight".