64764128 has 48 divisors (see below), whose sum is σ = 149805936. Its totient is φ = 27171840.

The previous prime is 64764043. The next prime is 64764137. The reversal of 64764128 is 82146746.

64764128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64764091 and 64764100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2501 + ... + 11652.

It is an arithmetic number, because the mean of its divisors is an integer number (3120957).

Almost surely, 2^64764128 is an apocalyptic number.

It is an amenable number.

64764128 is an abundant number, since it is smaller than the sum of its proper divisors (85041808).

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

64764128 is a wasteful number, since it uses less digits than its factorization.

64764128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14187 (or 14179 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 64764128 is about 8047.6162930398. The cubic root of 64764128 is about 401.5856393970.

The spelling of 64764128 in words is "sixty-four million, seven hundred sixty-four thousand, one hundred twenty-eight".