64388204628 has 48 divisors (see below), whose sum is σ = 165586943424. Its totient is φ = 19310423040.

The previous prime is 64388204603. The next prime is 64388204681. The reversal of 64388204628 is 82640288346.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2501575 + ... + 2527182.

It is an arithmetic number, because the mean of its divisors is an integer number (3449727988).

Almost surely, 2^64388204628 is an apocalyptic number.

It is an amenable number.

64388204628 is an abundant number, since it is smaller than the sum of its proper divisors (101198738796).

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

64388204628 is a wasteful number, since it uses less digits than its factorization.

64388204628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028872 (or 5028870 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 51.

The spelling of 64388204628 in words is "sixty-four billion, three hundred eighty-eight million, two hundred four thousand, six hundred twenty-eight".