91534998422 has 16 divisors (see below), whose sum is σ = 157382777760. Its totient is φ = 39112875648.

The previous prime is 91534998403. The next prime is 91534998427. The reversal of 91534998422 is 22489943519.

It is a super-2 number, since 2×91534998422² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91534998427) 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, 9695897 + ... + 9705332.

It is an arithmetic number, because the mean of its divisors is an integer number (9836423610).

Almost surely, 2^91534998422 is an apocalyptic number.

91534998422 is a deficient number, since it is larger than the sum of its proper divisors (65847779338).

91534998422 is a wasteful number, since it uses less digits than its factorization.

91534998422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19401575.

The product of its digits is 5598720, while the sum is 56.

The spelling of 91534998422 in words is "ninety-one billion, five hundred thirty-four million, nine hundred ninety-eight thousand, four hundred twenty-two".