91740084511 has 2 divisors, whose sum is σ = 91740084512. Its totient is φ = 91740084510.

The previous prime is 91740084479. The next prime is 91740084607. The reversal of 91740084511 is 11548004719.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91740084511 - 2⁵ = 91740084479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91740088511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45870042255 + 45870042256.

It is an arithmetic number, because the mean of its divisors is an integer number (45870042256).

Almost surely, 2^91740084511 is an apocalyptic number.

91740084511 is a deficient number, since it is larger than the sum of its proper divisors (1).

91740084511 is an equidigital number, since it uses as much as digits as its factorization.

91740084511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 91740084511 in words is "ninety-one billion, seven hundred forty million, eighty-four thousand, five hundred eleven".