45091221312 has 28 divisors (see below), whose sum is σ = 119303856896. Its totient is φ = 15030407040.

The previous prime is 45091221269. The next prime is 45091221317. The reversal of 45091221312 is 21312219054.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 45091221312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45091221317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117424864 + ... + 117425247.

It is an arithmetic number, because the mean of its divisors is an integer number (4260852032).

Almost surely, 2^45091221312 is an apocalyptic number.

It is an amenable number.

45091221312 is an abundant number, since it is smaller than the sum of its proper divisors (74212635584).

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

45091221312 is a wasteful number, since it uses less digits than its factorization.

45091221312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234850126 (or 234850116 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 45091221312 in words is "forty-five billion, ninety-one million, two hundred twenty-one thousand, three hundred twelve".