51057156512705 has 32 divisors (see below), whose sum is σ = 70460999884800. Its totient is φ = 34790805346752.

The previous prime is 51057156512633. The next prime is 51057156512711. The reversal of 51057156512705 is 50721565175015.

It is not a de Polignac number, because 51057156512705 - 2¹⁶ = 51057156447169 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, 39058076 + ... + 40344114.

It is an arithmetic number, because the mean of its divisors is an integer number (2201906246400).

Almost surely, 2^{51057156512705} is an apocalyptic number.

It is an amenable number.

51057156512705 is a deficient number, since it is larger than the sum of its proper divisors (19403843372095).

51057156512705 is a wasteful number, since it uses less digits than its factorization.

51057156512705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293173.

The product of its (nonzero) digits is 1837500, while the sum is 50.

The spelling of 51057156512705 in words is "fifty-one trillion, fifty-seven billion, one hundred fifty-six million, five hundred twelve thousand, seven hundred five".