91858442601 has 8 divisors (see below), whose sum is σ = 122824887840. Its totient is φ = 61065479552.

The previous prime is 91858442581. The next prime is 91858442609. The reversal of 91858442601 is 10624485819.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91858442601 - 2¹⁴ = 91858426217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91858442609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43369311 + ... + 43371428.

It is an arithmetic number, because the mean of its divisors is an integer number (15353110980).

Almost surely, 2^91858442601 is an apocalyptic number.

It is an amenable number.

91858442601 is a deficient number, since it is larger than the sum of its proper divisors (30966445239).

91858442601 is a wasteful number, since it uses less digits than its factorization.

91858442601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86741095.

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 91858442601 in words is "ninety-one billion, eight hundred fifty-eight million, four hundred forty-two thousand, six hundred one".