51157343757 has 32 divisors (see below), whose sum is σ = 74750659200. Its totient is φ = 30927589632.

The previous prime is 51157343747. The next prime is 51157343771. The reversal of 51157343757 is 75734375115.

It is not a de Polignac number, because 51157343757 - 2⁶ = 51157343693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51157343747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3981219 + ... + 3994047.

It is an arithmetic number, because the mean of its divisors is an integer number (2335958100).

Almost surely, 2^51157343757 is an apocalyptic number.

It is an amenable number.

51157343757 is a deficient number, since it is larger than the sum of its proper divisors (23593315443).

51157343757 is a wasteful number, since it uses less digits than its factorization.

51157343757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14637.

The product of its digits is 1543500, while the sum is 48.

The spelling of 51157343757 in words is "fifty-one billion, one hundred fifty-seven million, three hundred forty-three thousand, seven hundred fifty-seven".