91514538438720 has 224 divisors, whose sum is σ = 299952218910720. Its totient is φ = 23615025223680.

The previous prime is 91514538438679. The next prime is 91514538438733. The reversal of 91514538438720 is 2783483541519.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 465437391 + ... + 465633969.

Almost surely, 2^{91514538438720} 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 91514538438720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149976109455360).

91514538438720 is an abundant number, since it is smaller than the sum of its proper divisors (208437680472000).

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

91514538438720 is a wasteful number, since it uses less digits than its factorization.

91514538438720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212273 (or 212263 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 60.

The spelling of 91514538438720 in words is "ninety-one trillion, five hundred fourteen billion, five hundred thirty-eight million, four hundred thirty-eight thousand, seven hundred twenty".