2183897267568 has 80 divisors (see below), whose sum is σ = 6268779620640. Its totient is φ = 727944201216.

The previous prime is 2183897267561. The next prime is 2183897267581. The reversal of 2183897267568 is 8657627983812.

2183897267568 is a `hidden beast` number, since 2 + 1 + 8 + 38 + 9 + 7 + 26 + 7 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 2183897267496 and 2183897267505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183897267561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22187230 + ... + 22285442.

It is an arithmetic number, because the mean of its divisors is an integer number (78359745258).

Almost surely, 2^{2183897267568} is an apocalyptic number.

It is an amenable number.

2183897267568 is an abundant number, since it is smaller than the sum of its proper divisors (4084882353072).

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

2183897267568 is a wasteful number, since it uses less digits than its factorization.

2183897267568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149703 (or 149691 counting only the distinct ones).

The product of its digits is 487710720, while the sum is 72.

The spelling of 2183897267568 in words is "two trillion, one hundred eighty-three billion, eight hundred ninety-seven million, two hundred sixty-seven thousand, five hundred sixty-eight".