91393874695219 has 2 divisors, whose sum is σ = 91393874695220. Its totient is φ = 91393874695218.

The previous prime is 91393874695199. The next prime is 91393874695229. The reversal of 91393874695219 is 91259647839319.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91393874695219 - 2²⁷ = 91393740477491 is a prime.

It is a super-2 number, since 2×91393874695219² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (91393874695229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45696937347609 + 45696937347610.

It is an arithmetic number, because the mean of its divisors is an integer number (45696937347610).

Almost surely, 2^{91393874695219} is an apocalyptic number.

91393874695219 is a deficient number, since it is larger than the sum of its proper divisors (1).

91393874695219 is an equidigital number, since it uses as much as digits as its factorization.

91393874695219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 793618560, while the sum is 76.

The spelling of 91393874695219 in words is "ninety-one trillion, three hundred ninety-three billion, eight hundred seventy-four million, six hundred ninety-five thousand, two hundred nineteen".