45111779190 has 96 divisors (see below), whose sum is σ = 124286685120. Its totient is φ = 11313364992.

The previous prime is 45111779159. The next prime is 45111779203. The reversal of 45111779190 is 9197711154.

45111779190 is a `hidden beast` number, since 451 + 1 + 1 + 7 + 7 + 9 + 190 = 666.

It is a super-2 number, since 2×45111779190² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2080726 + ... + 2102294.

It is an arithmetic number, because the mean of its divisors is an integer number (1294652970).

Almost surely, 2^45111779190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45111779190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62143342560).

45111779190 is an abundant number, since it is smaller than the sum of its proper divisors (79174905930).

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

45111779190 is a wasteful number, since it uses less digits than its factorization.

45111779190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22966 (or 22963 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 45.

The spelling of 45111779190 in words is "forty-five billion, one hundred eleven million, seven hundred seventy-nine thousand, one hundred ninety".