51375184715145 has 32 divisors (see below), whose sum is σ = 82302523079040. Its totient is φ = 27366043443200.

The previous prime is 51375184715119. The next prime is 51375184715191. The reversal of 51375184715145 is 54151748157315.

It is not a de Polignac number, because 51375184715145 - 2¹⁶ = 51375184649609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39022870 + ... + 40317920.

It is an arithmetic number, because the mean of its divisors is an integer number (2571953846220).

Almost surely, 2^{51375184715145} is an apocalyptic number.

It is an amenable number.

51375184715145 is a deficient number, since it is larger than the sum of its proper divisors (30927338363895).

51375184715145 is a wasteful number, since it uses less digits than its factorization.

51375184715145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298345.

The product of its digits is 11760000, while the sum is 57.

The spelling of 51375184715145 in words is "fifty-one trillion, three hundred seventy-five billion, one hundred eighty-four million, seven hundred fifteen thousand, one hundred forty-five".