91752503540 has 48 divisors (see below), whose sum is σ = 197652559104. Its totient is φ = 35756371200.

The previous prime is 91752503533. The next prime is 91752503551. The reversal of 91752503540 is 4530525719.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519185 + ... + 673095.

It is an arithmetic number, because the mean of its divisors is an integer number (4117761648).

Almost surely, 2^91752503540 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 91752503540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98826279552).

91752503540 is an abundant number, since it is smaller than the sum of its proper divisors (105900055564).

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

91752503540 is a wasteful number, since it uses less digits than its factorization.

91752503540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154688 (or 154686 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 91752503540 in words is "ninety-one billion, seven hundred fifty-two million, five hundred three thousand, five hundred forty".