91236741120 has 936 divisors, whose sum is σ = 379178296224. Its totient is φ = 20639121408.

The previous prime is 91236741073. The next prime is 91236741149. The reversal of 91236741120 is 2114763219.

91236741120 is a `hidden beast` number, since 9 + 1 + 236 + 7 + 411 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 940584912 + ... + 940585008.

Almost surely, 2^91236741120 is an apocalyptic number.

91236741120 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91236741120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189589148112).

91236741120 is an abundant number, since it is smaller than the sum of its proper divisors (287941555104).

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

91236741120 is an frugal number, since it uses more digits than its factorization.

91236741120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 91236741120 in words is "ninety-one billion, two hundred thirty-six million, seven hundred forty-one thousand, one hundred twenty".