91034922604187 has 2 divisors, whose sum is σ = 91034922604188. Its totient is φ = 91034922604186.

The previous prime is 91034922604181. The next prime is 91034922604211. The reversal of 91034922604187 is 78140622943019.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91034922604187 - 2¹² = 91034922600091 is a prime.

It is not a weakly prime, because it can be changed into another prime (91034922604181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45517461302093 + 45517461302094.

It is an arithmetic number, because the mean of its divisors is an integer number (45517461302094).

Almost surely, 2^{91034922604187} is an apocalyptic number.

91034922604187 is a deficient number, since it is larger than the sum of its proper divisors (1).

91034922604187 is an equidigital number, since it uses as much as digits as its factorization.

91034922604187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 91034922604187 in words is "ninety-one trillion, thirty-four billion, nine hundred twenty-two million, six hundred four thousand, one hundred eighty-seven".