91272449141232 has 160 divisors (see below), whose sum is σ = 238426828992000. Its totient is φ = 30084627446784.

The previous prime is 91272449141227. The next prime is 91272449141273. The reversal of 91272449141232 is 23214194427219.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13134612894 + ... + 13134619842.

It is an arithmetic number, because the mean of its divisors is an integer number (1490167681200).

Almost surely, 2^{91272449141232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91272449141232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119213414496000).

91272449141232 is an abundant number, since it is smaller than the sum of its proper divisors (147154379850768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91272449141232 is a wasteful number, since it uses less digits than its factorization.

91272449141232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11383 (or 11377 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The spelling of 91272449141232 in words is "ninety-one trillion, two hundred seventy-two billion, four hundred forty-nine million, one hundred forty-one thousand, two hundred thirty-two".