91058263862641 has 4 divisors (see below), whose sum is σ = 91253249438832. Its totient is φ = 90863278286452.

The previous prime is 91058263862633. The next prime is 91058263862677. The reversal of 91058263862641 is 14626836285019.

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 not a de Polignac number, because 91058263862641 - 2³ = 91058263862633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91058263862641.

It is not an unprimeable number, because it can be changed into a prime (91058263862141) 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, 97492787395 + ... + 97492788328.

It is an arithmetic number, because the mean of its divisors is an integer number (22813312359708).

Almost surely, 2^{91058263862641} is an apocalyptic number.

It is an amenable number.

91058263862641 is a deficient number, since it is larger than the sum of its proper divisors (194985576191).

91058263862641 is a wasteful number, since it uses less digits than its factorization.

91058263862641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194985576190.

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 91058263862641 in words is "ninety-one trillion, fifty-eight billion, two hundred sixty-three million, eight hundred sixty-two thousand, six hundred forty-one".