257214412751 has 8 divisors (see below), whose sum is σ = 277055637504. Its totient is φ = 238094687160.

The previous prime is 257214412729. The next prime is 257214412759. The reversal of 257214412751 is 157214412752.

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

It is not a de Polignac number, because 257214412751 - 2⁶ = 257214412687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 257214412699 and 257214412708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257214412759) 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, 180374051 + ... + 180375476.

It is an arithmetic number, because the mean of its divisors is an integer number (34631954688).

Almost surely, 2^257214412751 is an apocalyptic number.

257214412751 is a deficient number, since it is larger than the sum of its proper divisors (19841224753).

257214412751 is a wasteful number, since it uses less digits than its factorization.

257214412751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360749581.

The product of its digits is 156800, while the sum is 41.

Subtracting from 257214412751 its reverse (157214412752), we obtain a palindrome (99999999999).

The spelling of 257214412751 in words is "two hundred fifty-seven billion, two hundred fourteen million, four hundred twelve thousand, seven hundred fifty-one".