91380133340 has 48 divisors (see below), whose sum is σ = 201150401760. Its totient is φ = 34831211520.

The previous prime is 91380133333. The next prime is 91380133367. The reversal of 91380133340 is 4333108319.

It is a self number, because there is not a number n which added to its sum of digits gives 91380133340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1260545 + ... + 1331064.

It is an arithmetic number, because the mean of its divisors is an integer number (4190633370).

Almost surely, 2^91380133340 is an apocalyptic number.

It is an amenable number.

91380133340 is an abundant number, since it is smaller than the sum of its proper divisors (109770268420).

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

91380133340 is a wasteful number, since it uses less digits than its factorization.

91380133340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591702 (or 2591700 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 91380133340 in words is "ninety-one billion, three hundred eighty million, one hundred thirty-three thousand, three hundred forty".