51185486292 has 48 divisors (see below), whose sum is σ = 121304252160. Its totient is φ = 16795763712.

The previous prime is 51185486291. The next prime is 51185486311. The reversal of 51185486292 is 29268458115.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51185486291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239368 + ... + 399584.

It is an arithmetic number, because the mean of its divisors is an integer number (2527171920).

Almost surely, 2^51185486292 is an apocalyptic number.

It is an amenable number.

51185486292 is an abundant number, since it is smaller than the sum of its proper divisors (70118765868).

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

51185486292 is a wasteful number, since it uses less digits than its factorization.

51185486292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160640 (or 160638 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 51.

The spelling of 51185486292 in words is "fifty-one billion, one hundred eighty-five million, four hundred eighty-six thousand, two hundred ninety-two".