257170756742053 has 24 divisors (see below), whose sum is σ = 330570444231104. Its totient is φ = 195732499818240.

The previous prime is 257170756742041. The next prime is 257170756742063. The reversal of 257170756742053 is 350247657071752.

It is not a de Polignac number, because 257170756742053 - 2⁵ = 257170756742021 is a prime.

It is a super-2 number, since 2×257170756742053² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 257170756741982 and 257170756742000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257170756742063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3530492076 + ... + 3530564917.

Almost surely, 2^{257170756742053} is an apocalyptic number.

It is an amenable number.

257170756742053 is a deficient number, since it is larger than the sum of its proper divisors (73399687489051).

257170756742053 is a wasteful number, since it uses less digits than its factorization.

257170756742053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7061057065 (or 7061057054 counting only the distinct ones).

The product of its (nonzero) digits is 86436000, while the sum is 61.

The spelling of 257170756742053 in words is "two hundred fifty-seven trillion, one hundred seventy billion, seven hundred fifty-six million, seven hundred forty-two thousand, fifty-three".