91261733652433 has 4 divisors (see below), whose sum is σ = 91261764643648. Its totient is φ = 91261702661220.

The previous prime is 91261733652377. The next prime is 91261733652449. The reversal of 91261733652433 is 33425633716219.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91261733652433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91261733652493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10552941 + ... + 17143162.

It is an arithmetic number, because the mean of its divisors is an integer number (22815441160912).

Almost surely, 2^{91261733652433} is an apocalyptic number.

It is an amenable number.

91261733652433 is a deficient number, since it is larger than the sum of its proper divisors (30991215).

91261733652433 is a wasteful number, since it uses less digits than its factorization.

91261733652433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30991214.

The product of its digits is 14696640, while the sum is 55.

The spelling of 91261733652433 in words is "ninety-one trillion, two hundred sixty-one billion, seven hundred thirty-three million, six hundred fifty-two thousand, four hundred thirty-three".