15000100000091 has 2 divisors, whose sum is σ = 15000100000092. Its totient is φ = 15000100000090.

The previous prime is 15000100000021. The next prime is 15000100000111. The reversal of 15000100000091 is 19000000100051.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15000100000091 - 2⁴² = 10602053488987 is a prime.

It is not a weakly prime, because it can be changed into another prime (15000100000021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7500050000045 + 7500050000046.

It is an arithmetic number, because the mean of its divisors is an integer number (7500050000046).

Almost surely, 2^{15000100000091} is an apocalyptic number.

15000100000091 is a deficient number, since it is larger than the sum of its proper divisors (1).

15000100000091 is an equidigital number, since it uses as much as digits as its factorization.

15000100000091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 17.

The spelling of 15000100000091 in words is "fifteen trillion, one hundred million, ninety-one", and thus it is an aban number.