51457704415 has 16 divisors (see below), whose sum is σ = 66847366656. Its totient is φ = 37800576000.

The previous prime is 51457704409. The next prime is 51457704433. The reversal of 51457704415 is 51440775415.

It is not a de Polignac number, because 51457704415 - 2¹⁵ = 51457671647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2059986 + ... + 2084815.

It is an arithmetic number, because the mean of its divisors is an integer number (4177960416).

Almost surely, 2^51457704415 is an apocalyptic number.

51457704415 is a deficient number, since it is larger than the sum of its proper divisors (15389662241).

51457704415 is a wasteful number, since it uses less digits than its factorization.

51457704415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145010.

The product of its (nonzero) digits is 392000, while the sum is 43.

The spelling of 51457704415 in words is "fifty-one billion, four hundred fifty-seven million, seven hundred four thousand, four hundred fifteen".