13875747257 has 8 divisors (see below), whose sum is σ = 14503720896. Its totient is φ = 13249830352.

The previous prime is 13875747251. The next prime is 13875747283. The reversal of 13875747257 is 75274757831.

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

It is a cyclic number.

It is not a de Polignac number, because 13875747257 - 2⁸ = 13875747001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13875747251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500378 + ... + 527379.

It is an arithmetic number, because the mean of its divisors is an integer number (1812965112).

Almost surely, 2^13875747257 is an apocalyptic number.

It is an amenable number.

13875747257 is a deficient number, since it is larger than the sum of its proper divisors (627973639).

13875747257 is a wasteful number, since it uses less digits than its factorization.

13875747257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028367.

The product of its digits is 11524800, while the sum is 56.

The spelling of 13875747257 in words is "thirteen billion, eight hundred seventy-five million, seven hundred forty-seven thousand, two hundred fifty-seven".