51354999945315 has 48 divisors (see below), whose sum is σ = 99732167005536. Its totient is φ = 24226437312000.

The previous prime is 51354999945289. The next prime is 51354999945331.

51354999945315 is a `hidden beast` number, since 5 + 1 + 3 + 5 + 499 + 99 + 45 + 3 + 1 + 5 = 666.

51354999945315 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51354999945315 - 2¹⁶ = 51354999879779 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1401974586 + ... + 1402011215.

It is an arithmetic number, because the mean of its divisors is an integer number (2077753479282).

Almost surely, 2^{51354999945315} is an apocalyptic number.

51354999945315 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51354999945315 is a deficient number, since it is larger than the sum of its proper divisors (48377167060221).

51354999945315 is a wasteful number, since it uses less digits than its factorization.

51354999945315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803985860 (or 2803985857 counting only the distinct ones).

The product of its digits is 590490000, while the sum is 72.

The spelling of 51354999945315 in words is "fifty-one trillion, three hundred fifty-four billion, nine hundred ninety-nine million, nine hundred forty-five thousand, three hundred fifteen".