51738407725473 has 48 divisors (see below), whose sum is σ = 86492551641600. Its totient is φ = 29189896594560.

The previous prime is 51738407725441. The next prime is 51738407725483. The reversal of 51738407725473 is 37452770483715.

It is a happy number.

51738407725473 is a `hidden beast` number, since 5 + 1 + 7 + 3 + 84 + 0 + 7 + 7 + 2 + 547 + 3 = 666.

51738407725473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51738407725473 - 2⁵ = 51738407725441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 51738407725473.

It is not an unprimeable number, because it can be changed into a prime (51738407725423) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 285534483 + ... + 285715623.

It is an arithmetic number, because the mean of its divisors is an integer number (1801928159200).

Almost surely, 2^{51738407725473} is an apocalyptic number.

It is an amenable number.

51738407725473 is a deficient number, since it is larger than the sum of its proper divisors (34754143916127).

51738407725473 is a wasteful number, since it uses less digits than its factorization.

51738407725473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238622 (or 238619 counting only the distinct ones).

The product of its (nonzero) digits is 138297600, while the sum is 63.

The spelling of 51738407725473 in words is "fifty-one trillion, seven hundred thirty-eight billion, four hundred seven million, seven hundred twenty-five thousand, four hundred seventy-three".