14213439557 has 2 divisors, whose sum is σ = 14213439558. Its totient is φ = 14213439556.

The previous prime is 14213439553. The next prime is 14213439613. The reversal of 14213439557 is 75593431241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13329626116 + 883813441 = 115454^2 + 29729^2 .

It is a cyclic number.

It is not a de Polignac number, because 14213439557 - 2² = 14213439553 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14213439551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7106719778 + 7106719779.

It is an arithmetic number, because the mean of its divisors is an integer number (7106719779).

Almost surely, 2^14213439557 is an apocalyptic number.

It is an amenable number.

14213439557 is a deficient number, since it is larger than the sum of its proper divisors (1).

14213439557 is an equidigital number, since it uses as much as digits as its factorization.

14213439557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 44.

The spelling of 14213439557 in words is "fourteen billion, two hundred thirteen million, four hundred thirty-nine thousand, five hundred fifty-seven".