51129084120 has 64 divisors (see below), whose sum is σ = 154968599520. Its totient is φ = 13493858304.

The previous prime is 51129084119. The next prime is 51129084121. The reversal of 51129084120 is 2148092115.

It is an interprime number because it is at equal distance from previous prime (51129084119) and next prime (51129084121).

It is a super-2 number, since 2×51129084120² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51129084121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2184627 + ... + 2207906.

Almost surely, 2^51129084120 is an apocalyptic number.

It is an amenable number.

51129084120 is an abundant number, since it is smaller than the sum of its proper divisors (103839515400).

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

51129084120 is a wasteful number, since it uses less digits than its factorization.

51129084120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4392644 (or 4392640 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The spelling of 51129084120 in words is "fifty-one billion, one hundred twenty-nine million, eighty-four thousand, one hundred twenty".