14257643401 has 4 divisors (see below), whose sum is σ = 14258015892. Its totient is φ = 14257270912.

The previous prime is 14257643383. The next prime is 14257643417. The reversal of 14257643401 is 10434675241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10434675241 = 599 ⋅17420159.

It can be written as a sum of positive squares in 2 ways, for example, as 14012877376 + 244766025 = 118376^2 + 15645^2 .

It is a cyclic number.

It is not a de Polignac number, because 14257643401 - 2⁷ = 14257643273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14257646401) 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, 121276 + ... + 207901.

It is an arithmetic number, because the mean of its divisors is an integer number (3564503973).

Almost surely, 2^14257643401 is an apocalyptic number.

It is an amenable number.

14257643401 is a deficient number, since it is larger than the sum of its proper divisors (372491).

14257643401 is an equidigital number, since it uses as much as digits as its factorization.

14257643401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372490.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 14257643401 in words is "fourteen billion, two hundred fifty-seven million, six hundred forty-three thousand, four hundred one".