51098986212 has 48 divisors (see below), whose sum is σ = 121090744320. Its totient is φ = 16767650592.

The previous prime is 51098986193. The next prime is 51098986229. The reversal of 51098986212 is 21268989015.

It is a super-2 number, since 2×51098986212² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1239589 + ... + 1280147.

It is an arithmetic number, because the mean of its divisors is an integer number (2522723840).

Almost surely, 2^51098986212 is an apocalyptic number.

It is an amenable number.

51098986212 is an abundant number, since it is smaller than the sum of its proper divisors (69991758108).

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

51098986212 is a wasteful number, since it uses less digits than its factorization.

51098986212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42200 (or 42198 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 51.

The spelling of 51098986212 in words is "fifty-one billion, ninety-eight million, nine hundred eighty-six thousand, two hundred twelve".