15974449411 has 2 divisors, whose sum is σ = 15974449412. Its totient is φ = 15974449410.

The previous prime is 15974449343. The next prime is 15974449423. The reversal of 15974449411 is 11494447951.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15974449411 is a prime.

It is not a weakly prime, because it can be changed into another prime (15974419411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7987224705 + 7987224706.

It is an arithmetic number, because the mean of its divisors is an integer number (7987224706).

Almost surely, 2^15974449411 is an apocalyptic number.

15974449411 is a deficient number, since it is larger than the sum of its proper divisors (1).

15974449411 is an equidigital number, since it uses as much as digits as its factorization.

15974449411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 49.

The spelling of 15974449411 in words is "fifteen billion, nine hundred seventy-four million, four hundred forty-nine thousand, four hundred eleven".