257834462156 has 24 divisors (see below), whose sum is σ = 478098212256. Its totient is φ = 121245960960.

The previous prime is 257834462147. The next prime is 257834462191. The reversal of 257834462156 is 651264438752.

It is a junction number, because it is equal to n+sod(n) for n = 257834462098 and 257834462107.

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, 1278896 + ... + 1466711.

It is an arithmetic number, because the mean of its divisors is an integer number (19920758844).

Almost surely, 2^257834462156 is an apocalyptic number.

It is an amenable number.

257834462156 is a deficient number, since it is larger than the sum of its proper divisors (220263750100).

257834462156 is a wasteful number, since it uses less digits than its factorization.

257834462156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747009 (or 2747007 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 53.

The spelling of 257834462156 in words is "two hundred fifty-seven billion, eight hundred thirty-four million, four hundred sixty-two thousand, one hundred fifty-six".