91403755801 has 4 divisors (see below), whose sum is σ = 91406822272. Its totient is φ = 91400689332.

The previous prime is 91403755783. The next prime is 91403755831. The reversal of 91403755801 is 10855730419.

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 91403755801 - 2⁵ = 91403755769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91403755831) 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, 1488081 + ... + 1548286.

It is an arithmetic number, because the mean of its divisors is an integer number (22851705568).

Almost surely, 2^91403755801 is an apocalyptic number.

It is an amenable number.

91403755801 is a deficient number, since it is larger than the sum of its proper divisors (3066471).

91403755801 is a wasteful number, since it uses less digits than its factorization.

91403755801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066470.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 91403755801 in words is "ninety-one billion, four hundred three million, seven hundred fifty-five thousand, eight hundred one".