51657274888235 has 16 divisors (see below), whose sum is σ = 63451808976864. Its totient is φ = 40351084768512.

The previous prime is 51657274888187. The next prime is 51657274888249. The reversal of 51657274888235 is 53288847275615.

51657274888235 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51657274888235 - 2⁴² = 47259228377131 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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40046852 + ... + 41316641.

It is an arithmetic number, because the mean of its divisors is an integer number (3965738061054).

Almost surely, 2^{51657274888235} is an apocalyptic number.

51657274888235 is a deficient number, since it is larger than the sum of its proper divisors (11794534088629).

51657274888235 is a wasteful number, since it uses less digits than its factorization.

51657274888235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81366494.

The product of its digits is 903168000, while the sum is 71.

The spelling of 51657274888235 in words is "fifty-one trillion, six hundred fifty-seven billion, two hundred seventy-four million, eight hundred eighty-eight thousand, two hundred thirty-five".