15238662667 has 2 divisors, whose sum is σ = 15238662668. Its totient is φ = 15238662666.

The previous prime is 15238662631. The next prime is 15238662671. The reversal of 15238662667 is 76626683251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15238662667 - 2⁷ = 15238662539 is a prime.

It is not a weakly prime, because it can be changed into another prime (15238662697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7619331333 + 7619331334.

It is an arithmetic number, because the mean of its divisors is an integer number (7619331334).

Almost surely, 2^15238662667 is an apocalyptic number.

15238662667 is a deficient number, since it is larger than the sum of its proper divisors (1).

15238662667 is an equidigital number, since it uses as much as digits as its factorization.

15238662667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 52.

The spelling of 15238662667 in words is "fifteen billion, two hundred thirty-eight million, six hundred sixty-two thousand, six hundred sixty-seven".