16314447493 has 2 divisors, whose sum is σ = 16314447494. Its totient is φ = 16314447492.

The previous prime is 16314447467. The next prime is 16314447497. The reversal of 16314447493 is 39474441361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15150409569 + 1164037924 = 123087^2 + 34118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16314447493 is a prime.

It is a super-2 number, since 2×16314447493² (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 (16314447497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8157223746 + 8157223747.

It is an arithmetic number, because the mean of its divisors is an integer number (8157223747).

Almost surely, 2^16314447493 is an apocalyptic number.

It is an amenable number.

16314447493 is a deficient number, since it is larger than the sum of its proper divisors (1).

16314447493 is an equidigital number, since it uses as much as digits as its factorization.

16314447493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 46.

The spelling of 16314447493 in words is "sixteen billion, three hundred fourteen million, four hundred forty-seven thousand, four hundred ninety-three".