257092689670 has 16 divisors (see below), whose sum is σ = 477694804608. Its totient is φ = 99519750720.

The previous prime is 257092689631. The next prime is 257092689671. The reversal of 257092689670 is 76986290752.

It is a junction number, because it is equal to n+sod(n) for n = 257092689599 and 257092689608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257092689671) 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, 414665319 + ... + 414665938.

It is an arithmetic number, because the mean of its divisors is an integer number (29855925288).

Almost surely, 2^257092689670 is an apocalyptic number.

257092689670 is a deficient number, since it is larger than the sum of its proper divisors (220602114938).

257092689670 is a wasteful number, since it uses less digits than its factorization.

257092689670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829331295.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 257092689670 in words is "two hundred fifty-seven billion, ninety-two million, six hundred eighty-nine thousand, six hundred seventy".