51744772864198 has 16 divisors (see below), whose sum is σ = 80992695015936. Its totient is φ = 24747232209480.

The previous prime is 51744772864189. The next prime is 51744772864199. The reversal of 51744772864198 is 89146827744715.

It is a self number, because there is not a number n which added to its sum of digits gives 51744772864198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51744772864199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1758348 + ... + 10323823.

It is an arithmetic number, because the mean of its divisors is an integer number (5062043438496).

Almost surely, 2^{51744772864198} is an apocalyptic number.

51744772864198 is a deficient number, since it is larger than the sum of its proper divisors (29247922151738).

51744772864198 is a wasteful number, since it uses less digits than its factorization.

51744772864198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12175299.

The product of its digits is 758661120, while the sum is 73.

The spelling of 51744772864198 in words is "fifty-one trillion, seven hundred forty-four billion, seven hundred seventy-two million, eight hundred sixty-four thousand, one hundred ninety-eight".