51372139940354 has 16 divisors (see below), whose sum is σ = 81119481264000. Its totient is φ = 24332498722224.

The previous prime is 51372139940309. The next prime is 51372139940357. The reversal of 51372139940354 is 45304993127315.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51372139940354.

It is not an unprimeable number, because it can be changed into a prime (51372139940357) 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 7 ways as a sum of consecutive naturals, for example, 45907322 + ... + 47013045.

It is an arithmetic number, because the mean of its divisors is an integer number (5069967579000).

Almost surely, 2^{51372139940354} is an apocalyptic number.

51372139940354 is a deficient number, since it is larger than the sum of its proper divisors (29747341323646).

51372139940354 is a wasteful number, since it uses less digits than its factorization.

51372139940354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92934937.

The product of its (nonzero) digits is 12247200, while the sum is 56.

The spelling of 51372139940354 in words is "fifty-one trillion, three hundred seventy-two billion, one hundred thirty-nine million, nine hundred forty thousand, three hundred fifty-four".