91404964111 has 2 divisors, whose sum is σ = 91404964112. Its totient is φ = 91404964110.

The previous prime is 91404964097. The next prime is 91404964121. The reversal of 91404964111 is 11146940419.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91404964111 - 2²¹ = 91402866959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91404964121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45702482055 + 45702482056.

It is an arithmetic number, because the mean of its divisors is an integer number (45702482056).

Almost surely, 2^91404964111 is an apocalyptic number.

91404964111 is a deficient number, since it is larger than the sum of its proper divisors (1).

91404964111 is an equidigital number, since it uses as much as digits as its factorization.

91404964111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 91404964111 in words is "ninety-one billion, four hundred four million, nine hundred sixty-four thousand, one hundred eleven".