14013431989 has 2 divisors, whose sum is σ = 14013431990. Its totient is φ = 14013431988.

The previous prime is 14013431977. The next prime is 14013432071. The reversal of 14013431989 is 98913431041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8876843089 + 5136588900 = 94217^2 + 71670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14013431989 is a prime.

It is a super-2 number, since 2×14013431989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14013431909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7006715994 + 7006715995.

It is an arithmetic number, because the mean of its divisors is an integer number (7006715995).

Almost surely, 2^14013431989 is an apocalyptic number.

It is an amenable number.

14013431989 is a deficient number, since it is larger than the sum of its proper divisors (1).

14013431989 is an equidigital number, since it uses as much as digits as its factorization.

14013431989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 14013431989 in words is "fourteen billion, thirteen million, four hundred thirty-one thousand, nine hundred eighty-nine".