2044775778000 has 160 divisors (see below), whose sum is σ = 6653970011520. Its totient is φ = 540177356800.

The previous prime is 2044775777983. The next prime is 2044775778011. The reversal of 2044775778000 is 8775774402.

It is a super-2 number, since 2×2044775778000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 950505 + ... + 2234504.

It is an arithmetic number, because the mean of its divisors is an integer number (41587312572).

Almost surely, 2^{2044775778000} is an apocalyptic number.

2044775778000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2044775778000 is an abundant number, since it is smaller than the sum of its proper divisors (4609194233520).

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

2044775778000 is a wasteful number, since it uses less digits than its factorization.

2044775778000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185142 (or 3185126 counting only the distinct ones).

The product of its (nonzero) digits is 3073280, while the sum is 51.

The spelling of 2044775778000 in words is "two trillion, forty-four billion, seven hundred seventy-five million, seven hundred seventy-eight thousand".