51157061171 has 8 divisors (see below), whose sum is σ = 52349892144. Its totient is φ = 49964372640.

The previous prime is 51157061161. The next prime is 51157061177. The reversal of 51157061171 is 17116075115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51157061171 - 2¹⁴ = 51157044787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51157061177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1131125 + ... + 1175481.

It is an arithmetic number, because the mean of its divisors is an integer number (6543736518).

Almost surely, 2^51157061171 is an apocalyptic number.

51157061171 is a deficient number, since it is larger than the sum of its proper divisors (1192830973).

51157061171 is a wasteful number, since it uses less digits than its factorization.

51157061171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71221.

The product of its (nonzero) digits is 7350, while the sum is 35.

The spelling of 51157061171 in words is "fifty-one billion, one hundred fifty-seven million, sixty-one thousand, one hundred seventy-one".