15957801967 has 2 divisors, whose sum is σ = 15957801968. Its totient is φ = 15957801966.

The previous prime is 15957801913. The next prime is 15957801973. The reversal of 15957801967 is 76910875951.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15957801967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15957801907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7978900983 + 7978900984.

It is an arithmetic number, because the mean of its divisors is an integer number (7978900984).

Almost surely, 2^15957801967 is an apocalyptic number.

15957801967 is a deficient number, since it is larger than the sum of its proper divisors (1).

15957801967 is an equidigital number, since it uses as much as digits as its factorization.

15957801967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4762800, while the sum is 58.

The spelling of 15957801967 in words is "fifteen billion, nine hundred fifty-seven million, eight hundred one thousand, nine hundred sixty-seven".