51495178122 has 12 divisors (see below), whose sum is σ = 111572885970. Its totient is φ = 17165059368.

The previous prime is 51495178109. The next prime is 51495178157. The reversal of 51495178122 is 22187159415.

51495178122 is a `hidden beast` number, since 5 + 1 + 4 + 9 + 517 + 8 + 122 = 666.

It can be written as a sum of positive squares in only one way, i.e., 40675225761 + 10819952361 = 201681^2 + 104019^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1430421597 + ... + 1430421632.

Almost surely, 2^51495178122 is an apocalyptic number.

51495178122 is an abundant number, since it is smaller than the sum of its proper divisors (60077707848).

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

51495178122 is a wasteful number, since it uses less digits than its factorization.

51495178122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860843237 (or 2860843234 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The spelling of 51495178122 in words is "fifty-one billion, four hundred ninety-five million, one hundred seventy-eight thousand, one hundred twenty-two".