51214654942923 has 16 divisors (see below), whose sum is σ = 69432104773760. Its totient is φ = 33572017454976.

The previous prime is 51214654942907. The next prime is 51214654942943. The reversal of 51214654942923 is 32924945641215.

It is a happy number.

It is not a de Polignac number, because 51214654942923 - 2⁴ = 51214654942907 is a prime.

It is the 7156442-nd Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51214654942943) by changing a digit.

It is a nontrivial repunit in base 7156441.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232796158 + ... + 233016051.

It is an arithmetic number, because the mean of its divisors is an integer number (4339506548360).

Almost surely, 2^{51214654942923} is an apocalyptic number.

51214654942923 is a deficient number, since it is larger than the sum of its proper divisors (18217449830837).

51214654942923 is a wasteful number, since it uses less digits than its factorization.

51214654942923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465812826.

The product of its digits is 18662400, while the sum is 57.

The spelling of 51214654942923 in words is "fifty-one trillion, two hundred fourteen billion, six hundred fifty-four million, nine hundred forty-two thousand, nine hundred twenty-three".