257898538943 has 16 divisors (see below), whose sum is σ = 271405620000. Its totient is φ = 244701929472.

The previous prime is 257898538903. The next prime is 257898538951. The reversal of 257898538943 is 349835898752.

It is not a de Polignac number, because 257898538943 - 2⁸ = 257898538687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257898538903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5343383 + ... + 5391431.

It is an arithmetic number, because the mean of its divisors is an integer number (16962851250).

Almost surely, 2^257898538943 is an apocalyptic number.

257898538943 is a deficient number, since it is larger than the sum of its proper divisors (13507081057).

257898538943 is a wasteful number, since it uses less digits than its factorization.

257898538943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51274.

The product of its digits is 522547200, while the sum is 71.

The spelling of 257898538943 in words is "two hundred fifty-seven billion, eight hundred ninety-eight million, five hundred thirty-eight thousand, nine hundred forty-three".