257741172431 has 8 divisors (see below), whose sum is σ = 258435396144. Its totient is φ = 257047338240.

The previous prime is 257741172401. The next prime is 257741172443. The reversal of 257741172431 is 134271147752.

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 257741172431 - 2¹⁴ = 257741156047 is a prime.

It is a super-2 number, since 2×257741172431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257741172401) 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, 1252895 + ... + 1444031.

It is an arithmetic number, because the mean of its divisors is an integer number (32304424518).

Almost surely, 2^257741172431 is an apocalyptic number.

257741172431 is a deficient number, since it is larger than the sum of its proper divisors (694223713).

257741172431 is a wasteful number, since it uses less digits than its factorization.

257741172431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194761.

The product of its digits is 329280, while the sum is 44.

The spelling of 257741172431 in words is "two hundred fifty-seven billion, seven hundred forty-one million, one hundred seventy-two thousand, four hundred thirty-one".