2251241045808 has 80 divisors (see below), whose sum is σ = 6213166081920. Its totient is φ = 700307486208.

The previous prime is 2251241045777. The next prime is 2251241045813. The reversal of 2251241045808 is 8085401421522.

It is a self number, because there is not a number n which added to its sum of digits gives 2251241045808.

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 15 ways as a sum of consecutive naturals, for example, 18360285 + ... + 18482492.

It is an arithmetic number, because the mean of its divisors is an integer number (77664576024).

Almost surely, 2^{2251241045808} is an apocalyptic number.

It is an amenable number.

2251241045808 is an abundant number, since it is smaller than the sum of its proper divisors (3961925036112).

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

2251241045808 is a wasteful number, since it uses less digits than its factorization.

2251241045808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36842874 (or 36842868 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 42.

The spelling of 2251241045808 in words is "two trillion, two hundred fifty-one billion, two hundred forty-one million, forty-five thousand, eight hundred eight".