51254134145 has 16 divisors (see below), whose sum is σ = 64192286592. Its totient is φ = 39212490240.

The previous prime is 51254134117. The next prime is 51254134163. The reversal of 51254134145 is 54143145215.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-51254134145 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549350 + ... + 635840.

It is an arithmetic number, because the mean of its divisors is an integer number (4012017912).

Almost surely, 2^51254134145 is an apocalyptic number.

It is an amenable number.

51254134145 is a deficient number, since it is larger than the sum of its proper divisors (12938152447).

51254134145 is a wasteful number, since it uses less digits than its factorization.

51254134145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91672.

The product of its digits is 48000, while the sum is 35.

The spelling of 51254134145 in words is "fifty-one billion, two hundred fifty-four million, one hundred thirty-four thousand, one hundred forty-five".