64751820088 has 8 divisors (see below), whose sum is σ = 121409662680. Its totient is φ = 32375910040.

The previous prime is 64751820071. The next prime is 64751820103. The reversal of 64751820088 is 88002815746.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4046988748 + ... + 4046988763.

It is an arithmetic number, because the mean of its divisors is an integer number (15176207835).

Almost surely, 2^64751820088 is an apocalyptic number.

It is an amenable number.

64751820088 is a deficient number, since it is larger than the sum of its proper divisors (56657842592).

64751820088 is a wasteful number, since it uses less digits than its factorization.

64751820088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8093977517 (or 8093977513 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 49.

The spelling of 64751820088 in words is "sixty-four billion, seven hundred fifty-one million, eight hundred twenty thousand, eighty-eight".