257050127532647 has 4 divisors (see below), whose sum is σ = 257182015747800. Its totient is φ = 256918239317496.

The previous prime is 257050127532641. The next prime is 257050127532707. The reversal of 257050127532647 is 746235721050752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 257050127532647 - 2⁴ = 257050127532631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 257050127532592 and 257050127532601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257050127532641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65944104653 + ... + 65944108550.

It is an arithmetic number, because the mean of its divisors is an integer number (64295503936950).

Almost surely, 2^{257050127532647} is an apocalyptic number.

257050127532647 is a deficient number, since it is larger than the sum of its proper divisors (131888215153).

257050127532647 is a wasteful number, since it uses less digits than its factorization.

257050127532647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131888215152.

The product of its (nonzero) digits is 24696000, while the sum is 56.

The spelling of 257050127532647 in words is "two hundred fifty-seven trillion, fifty billion, one hundred twenty-seven million, five hundred thirty-two thousand, six hundred forty-seven".