15930331247 has 2 divisors, whose sum is σ = 15930331248. Its totient is φ = 15930331246.

The previous prime is 15930331169. The next prime is 15930331289. The reversal of 15930331247 is 74213303951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15930331247 - 2⁸ = 15930330991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15930331247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15930331297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7965165623 + 7965165624.

It is an arithmetic number, because the mean of its divisors is an integer number (7965165624).

Almost surely, 2^15930331247 is an apocalyptic number.

15930331247 is a deficient number, since it is larger than the sum of its proper divisors (1).

15930331247 is an equidigital number, since it uses as much as digits as its factorization.

15930331247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 15930331247 in words is "fifteen billion, nine hundred thirty million, three hundred thirty-one thousand, two hundred forty-seven".