64750336764 has 48 divisors (see below), whose sum is σ = 153177024000. Its totient is φ = 21285104256.

The previous prime is 64750336747. The next prime is 64750336793. The reversal of 64750336764 is 46763305746.

It is a super-2 number, since 2×64750336764² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772587 + ... + 852285.

It is an arithmetic number, because the mean of its divisors is an integer number (3191188000).

Almost surely, 2^64750336764 is an apocalyptic number.

It is an amenable number.

64750336764 is an abundant number, since it is smaller than the sum of its proper divisors (88426687236).

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

64750336764 is a wasteful number, since it uses less digits than its factorization.

64750336764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80642 (or 80640 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 51.

The spelling of 64750336764 in words is "sixty-four billion, seven hundred fifty million, three hundred thirty-six thousand, seven hundred sixty-four".