51738852637564 has 48 divisors (see below), whose sum is σ = 95125419164160. Its totient is φ = 24576105597120.

The previous prime is 51738852637559. The next prime is 51738852637567. The reversal of 51738852637564 is 46573625883715.

It is a junction number, because it is equal to n+sod(n) for n = 51738852637493 and 51738852637502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51738852637567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4778782 + ... + 11238970.

It is an arithmetic number, because the mean of its divisors is an integer number (1981779565920).

Almost surely, 2^{51738852637564} is an apocalyptic number.

It is an amenable number.

51738852637564 is a deficient number, since it is larger than the sum of its proper divisors (43386566526596).

51738852637564 is a wasteful number, since it uses less digits than its factorization.

51738852637564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6460810 (or 6460808 counting only the distinct ones).

The product of its digits is 1016064000, while the sum is 70.

The spelling of 51738852637564 in words is "fifty-one trillion, seven hundred thirty-eight billion, eight hundred fifty-two million, six hundred thirty-seven thousand, five hundred sixty-four".