51000100105 has 16 divisors (see below), whose sum is σ = 64884657600. Its totient is φ = 38374620480.

The previous prime is 51000100097. The next prime is 51000100117. The reversal of 51000100105 is 50100100015.

It is not a de Polignac number, because 51000100105 - 2³ = 51000100097 is a prime.

It is a super-2 number, since 2×51000100105² (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, 1917886 + ... + 1944295.

It is an arithmetic number, because the mean of its divisors is an integer number (4055291100).

Almost surely, 2^51000100105 is an apocalyptic number.

It is an amenable number.

51000100105 is a deficient number, since it is larger than the sum of its proper divisors (13884557495).

51000100105 is a wasteful number, since it uses less digits than its factorization.

51000100105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862344.

The product of its (nonzero) digits is 25, while the sum is 13.

The spelling of 51000100105 in words is "fifty-one billion, one hundred thousand, one hundred five".