2045774444544 has 120 divisors (see below), whose sum is σ = 6110575150680. Its totient is φ = 681924759552.

The previous prime is 2045774444473. The next prime is 2045774444603. The reversal of 2045774444544 is 4454444775402.

2045774444544 is a `hidden beast` number, since 2 + 0 + 4 + 57 + 7 + 4 + 4 + 44 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6000244 + ... + 6332019.

It is an arithmetic number, because the mean of its divisors is an integer number (50921459589).

Almost surely, 2^{2045774444544} is an apocalyptic number.

2045774444544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2045774444544 is an abundant number, since it is smaller than the sum of its proper divisors (4064800706136).

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

2045774444544 is an equidigital number, since it uses as much as digits as its factorization.

2045774444544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12332297 (or 12332268 counting only the distinct ones).

The product of its (nonzero) digits is 40140800, while the sum is 54.

The spelling of 2045774444544 in words is "two trillion, forty-five billion, seven hundred seventy-four million, four hundred forty-four thousand, five hundred forty-four".