91481433163 has 8 divisors (see below), whose sum is σ = 94589591936. Its totient is φ = 88383096000.

The previous prime is 91481433143. The next prime is 91481433167. The reversal of 91481433163 is 36133418419.

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 91481433163 - 2¹³ = 91481424971 is a prime.

It is a super-2 number, since 2×91481433163² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91481433167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2436456 + ... + 2473717.

It is an arithmetic number, because the mean of its divisors is an integer number (11823698992).

Almost surely, 2^91481433163 is an apocalyptic number.

91481433163 is a deficient number, since it is larger than the sum of its proper divisors (3108158773).

91481433163 is a wasteful number, since it uses less digits than its factorization.

91481433163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4910805.

The product of its digits is 186624, while the sum is 43.

The spelling of 91481433163 in words is "ninety-one billion, four hundred eighty-one million, four hundred thirty-three thousand, one hundred sixty-three".