51905404810 has 32 divisors (see below), whose sum is σ = 106794950400. Its totient is φ = 17793119232.

The previous prime is 51905404777. The next prime is 51905404843. The reversal of 51905404810 is 1840450915.

It is an interprime number because it is at equal distance from previous prime (51905404777) and next prime (51905404843).

It is a super-2 number, since 2×51905404810² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51905404810.

It is an unprimeable number.

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, 374122 + ... + 493738.

It is an arithmetic number, because the mean of its divisors is an integer number (3337342200).

Almost surely, 2^51905404810 is an apocalyptic number.

51905404810 is an abundant number, since it is smaller than the sum of its proper divisors (54889545590).

51905404810 is a wasteful number, since it uses less digits than its factorization.

51905404810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125830.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 51905404810 in words is "fifty-one billion, nine hundred five million, four hundred four thousand, eight hundred ten".