91139258353 has 8 divisors (see below), whose sum is σ = 107072695296. Its totient is φ = 76480496400.

The previous prime is 91139258341. The next prime is 91139258369. The reversal of 91139258353 is 35385293119.

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

It is not a de Polignac number, because 91139258353 - 2²¹ = 91137161201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91139258297 and 91139258306.

It is not an unprimeable number, because it can be changed into a prime (91139258333) 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, 318668593 + ... + 318668878.

It is an arithmetic number, because the mean of its divisors is an integer number (13384086912).

Almost surely, 2^91139258353 is an apocalyptic number.

It is an amenable number.

91139258353 is a deficient number, since it is larger than the sum of its proper divisors (15933436943).

91139258353 is a wasteful number, since it uses less digits than its factorization.

91139258353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637337495.

The product of its digits is 874800, while the sum is 49.

The spelling of 91139258353 in words is "ninety-one billion, one hundred thirty-nine million, two hundred fifty-eight thousand, three hundred fifty-three".