2251807022568 has 64 divisors (see below), whose sum is σ = 5761859558400. Its totient is φ = 732965365440.

The previous prime is 2251807022477. The next prime is 2251807022579. The reversal of 2251807022568 is 8652207081522.

It is a happy number.

It is a super-2 number, since 2×2251807022568² (a number of 26 digits) contains 22 as substring.

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, 3942063 + ... + 4476993.

It is an arithmetic number, because the mean of its divisors is an integer number (90029055600).

Almost surely, 2^{2251807022568} is an apocalyptic number.

It is an amenable number.

2251807022568 is an abundant number, since it is smaller than the sum of its proper divisors (3510052535832).

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

2251807022568 is a wasteful number, since it uses less digits than its factorization.

2251807022568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539062 (or 539058 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 2251807022568 in words is "two trillion, two hundred fifty-one billion, eight hundred seven million, twenty-two thousand, five hundred sixty-eight".