13890414857 has 24 divisors (see below), whose sum is σ = 15410656800. Its totient is φ = 12510210240.

The previous prime is 13890414833. The next prime is 13890414871. The reversal of 13890414857 is 75841409831.

It is a happy number.

It is not a de Polignac number, because 13890414857 - 2¹⁰ = 13890413833 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13890414457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6648269 + ... + 6650357.

It is an arithmetic number, because the mean of its divisors is an integer number (642110700).

Almost surely, 2^13890414857 is an apocalyptic number.

It is an amenable number.

13890414857 is a deficient number, since it is larger than the sum of its proper divisors (1520241943).

13890414857 is a wasteful number, since it uses less digits than its factorization.

13890414857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597 (or 2586 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 13890414857 in words is "thirteen billion, eight hundred ninety million, four hundred fourteen thousand, eight hundred fifty-seven".