15953314427 has 2 divisors, whose sum is σ = 15953314428. Its totient is φ = 15953314426.

The previous prime is 15953314397. The next prime is 15953314463. The reversal of 15953314427 is 72441335951.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (72441335951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15953314427 - 2²⁸ = 15684878971 is a prime.

It is not a weakly prime, because it can be changed into another prime (15953314477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7976657213 + 7976657214.

It is an arithmetic number, because the mean of its divisors is an integer number (7976657214).

Almost surely, 2^15953314427 is an apocalyptic number.

15953314427 is a deficient number, since it is larger than the sum of its proper divisors (1).

15953314427 is an equidigital number, since it uses as much as digits as its factorization.

15953314427 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 15953314427 in words is "fifteen billion, nine hundred fifty-three million, three hundred fourteen thousand, four hundred twenty-seven".