14257426478 has 4 divisors (see below), whose sum is σ = 21386139720. Its totient is φ = 7128713238.

The previous prime is 14257426439. The next prime is 14257426481. The reversal of 14257426478 is 87462475241.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3564356618 + ... + 3564356621.

It is an arithmetic number, because the mean of its divisors is an integer number (5346534930).

Almost surely, 2^14257426478 is an apocalyptic number.

14257426478 is a deficient number, since it is larger than the sum of its proper divisors (7128713242).

14257426478 is an equidigital number, since it uses as much as digits as its factorization.

14257426478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7128713241.

The product of its digits is 3010560, while the sum is 50.

The spelling of 14257426478 in words is "fourteen billion, two hundred fifty-seven million, four hundred twenty-six thousand, four hundred seventy-eight".