64758988 has 36 divisors (see below), whose sum is σ = 132835080. Its totient is φ = 27542592.

The previous prime is 64758949. The next prime is 64759021. The reversal of 64758988 is 88985746.

64758988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 26056 + ... + 28432.

Almost surely, 2^64758988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64758988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66417540).

64758988 is an abundant number, since it is smaller than the sum of its proper divisors (68076092).

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

64758988 is a wasteful number, since it uses less digits than its factorization.

64758988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534 (or 2525 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 55.

The square root of 64758988 is about 8047.2969374816. The cubic root of 64758988 is about 401.5750151782.

The spelling of 64758988 in words is "sixty-four million, seven hundred fifty-eight thousand, nine hundred eighty-eight".