257741241465 has 8 divisors (see below), whose sum is σ = 412385986368. Its totient is φ = 137461995440.

The previous prime is 257741241419. The next prime is 257741241487. The reversal of 257741241465 is 564142147752.

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

It is not a de Polignac number, because 257741241465 - 2⁸ = 257741241209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8591374701 + ... + 8591374730.

It is an arithmetic number, because the mean of its divisors is an integer number (51548248296).

Almost surely, 2^257741241465 is an apocalyptic number.

It is an amenable number.

257741241465 is a deficient number, since it is larger than the sum of its proper divisors (154644744903).

257741241465 is a wasteful number, since it uses less digits than its factorization.

257741241465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17182749439.

The product of its digits is 1881600, while the sum is 48.

The spelling of 257741241465 in words is "two hundred fifty-seven billion, seven hundred forty-one million, two hundred forty-one thousand, four hundred sixty-five".