91269375493357 has 2 divisors, whose sum is σ = 91269375493358. Its totient is φ = 91269375493356.

The previous prime is 91269375493271. The next prime is 91269375493367. The reversal of 91269375493357 is 75339457396219.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79979735173321 + 11289640320036 = 8943139^2 + 3360006^2 .

It is a cyclic number.

It is not a de Polignac number, because 91269375493357 - 2¹¹ = 91269375491309 is a prime.

It is a super-2 number, since 2×91269375493357² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91269375493357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91269375493367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45634687746678 + 45634687746679.

It is an arithmetic number, because the mean of its divisors is an integer number (45634687746679).

Almost surely, 2^{91269375493357} is an apocalyptic number.

It is an amenable number.

91269375493357 is a deficient number, since it is larger than the sum of its proper divisors (1).

91269375493357 is an equidigital number, since it uses as much as digits as its factorization.

91269375493357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1157360400, while the sum is 73.

The spelling of 91269375493357 in words is "ninety-one trillion, two hundred sixty-nine billion, three hundred seventy-five million, four hundred ninety-three thousand, three hundred fifty-seven".