91040006753 has 2 divisors, whose sum is σ = 91040006754. Its totient is φ = 91040006752.

The previous prime is 91040006731. The next prime is 91040006773. The reversal of 91040006753 is 35760004019.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60089697424 + 30950309329 = 245132^2 + 175927^2 .

It is an emirp because it is prime and its reverse (35760004019) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91040006753 - 2⁶ = 91040006689 is a prime.

It is not a weakly prime, because it can be changed into another prime (91040006773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45520003376 + 45520003377.

It is an arithmetic number, because the mean of its divisors is an integer number (45520003377).

Almost surely, 2^91040006753 is an apocalyptic number.

It is an amenable number.

91040006753 is a deficient number, since it is larger than the sum of its proper divisors (1).

91040006753 is an equidigital number, since it uses as much as digits as its factorization.

91040006753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 91040006753 in words is "ninety-one billion, forty million, six thousand, seven hundred fifty-three".