64718195484 has 24 divisors (see below), whose sum is σ = 153858353040. Its totient is φ = 21165698944.

The previous prime is 64718195483. The next prime is 64718195491. The reversal of 64718195484 is 48459181746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64718195483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50878449 + ... + 50879720.

It is an arithmetic number, because the mean of its divisors is an integer number (6410764710).

Almost surely, 2^64718195484 is an apocalyptic number.

It is an amenable number.

64718195484 is an abundant number, since it is smaller than the sum of its proper divisors (89140157556).

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

64718195484 is a wasteful number, since it uses less digits than its factorization.

64718195484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101758229 (or 101758227 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 57.

The spelling of 64718195484 in words is "sixty-four billion, seven hundred eighteen million, one hundred ninety-five thousand, four hundred eighty-four".