51764500909644 has 12 divisors (see below), whose sum is σ = 120783835455864. Its totient is φ = 17254833636544.

The previous prime is 51764500909637. The next prime is 51764500909661. The reversal of 51764500909644 is 44690900546715.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2156854204557 + ... + 2156854204580.

It is an arithmetic number, because the mean of its divisors is an integer number (10065319621322).

Almost surely, 2^{51764500909644} is an apocalyptic number.

It is an amenable number.

51764500909644 is an abundant number, since it is smaller than the sum of its proper divisors (69019334546220).

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

51764500909644 is a wasteful number, since it uses less digits than its factorization.

51764500909644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313708409144 (or 4313708409142 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 51764500909644 in words is "fifty-one trillion, seven hundred sixty-four billion, five hundred million, nine hundred nine thousand, six hundred forty-four".