51444451092 has 24 divisors (see below), whose sum is σ = 120071127456. Its totient is φ = 17143282528.

The previous prime is 51444451063. The next prime is 51444451171. The reversal of 51444451092 is 29015444415.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51444451092.

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 in 7 ways as a sum of consecutive naturals, for example, 564318 + ... + 649109.

It is an arithmetic number, because the mean of its divisors is an integer number (5002963644).

Almost surely, 2^51444451092 is an apocalyptic number.

It is an amenable number.

51444451092 is an abundant number, since it is smaller than the sum of its proper divisors (68626676364).

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

51444451092 is a wasteful number, since it uses less digits than its factorization.

51444451092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216967 (or 1216965 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 51444451092 in words is "fifty-one billion, four hundred forty-four million, four hundred fifty-one thousand, ninety-two".