45111919500 has 288 divisors, whose sum is σ = 145978035840. Its totient is φ = 11724134400.

The previous prime is 45111919453. The next prime is 45111919591. The reversal of 45111919500 is 591911154.

45111919500 is a `hidden beast` number, since 4 + 51 + 11 + 91 + 9 + 500 = 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29235729 + ... + 29237271.

It is an arithmetic number, because the mean of its divisors is an integer number (506868180).

Almost surely, 2^45111919500 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 45111919500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72989017920).

45111919500 is an abundant number, since it is smaller than the sum of its proper divisors (100866116340).

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

45111919500 is a wasteful number, since it uses less digits than its factorization.

45111919500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 1715 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 36.

The spelling of 45111919500 in words is "forty-five billion, one hundred eleven million, nine hundred nineteen thousand, five hundred".