257056113602445 has 8 divisors (see below), whose sum is σ = 411289781763936. Its totient is φ = 137096593921296.

The previous prime is 257056113602437. The next prime is 257056113602513. The reversal of 257056113602445 is 544206311650752.

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

It is not a de Polignac number, because 257056113602445 - 2³ = 257056113602437 is a prime.

It is a congruent number.

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, 8568537120067 + ... + 8568537120096.

It is an arithmetic number, because the mean of its divisors is an integer number (51411222720492).

Almost surely, 2^{257056113602445} is an apocalyptic number.

It is an amenable number.

257056113602445 is a deficient number, since it is larger than the sum of its proper divisors (154233668161491).

257056113602445 is a wasteful number, since it uses less digits than its factorization.

257056113602445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17137074240171.

The product of its (nonzero) digits is 6048000, while the sum is 51.

The spelling of 257056113602445 in words is "two hundred fifty-seven trillion, fifty-six billion, one hundred thirteen million, six hundred two thousand, four hundred forty-five".