51145512122 has 32 divisors (see below), whose sum is σ = 78050459520. Its totient is φ = 25133713920.

The previous prime is 51145512107. The next prime is 51145512127. The reversal of 51145512122 is 22121554115.

It is not an unprimeable number, because it can be changed into a prime (51145512127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11817923 + ... + 11822249.

It is an arithmetic number, because the mean of its divisors is an integer number (2439076860).

Almost surely, 2^51145512122 is an apocalyptic number.

51145512122 is a deficient number, since it is larger than the sum of its proper divisors (26904947398).

51145512122 is a wasteful number, since it uses less digits than its factorization.

51145512122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4886.

The product of its digits is 4000, while the sum is 29.

The spelling of 51145512122 in words is "fifty-one billion, one hundred forty-five million, five hundred twelve thousand, one hundred twenty-two".