1817822648360 has 32 divisors (see below), whose sum is σ = 4267931437440. Its totient is φ = 695514752064.

The previous prime is 1817822648359. The next prime is 1817822648393. The reversal of 1817822648360 is 638462287181.

It is a junction number, because it is equal to n+sod(n) for n = 1817822648296 and 1817822648305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987946172 + ... + 987948011.

It is an arithmetic number, because the mean of its divisors is an integer number (133372857420).

Almost surely, 2^{1817822648360} is an apocalyptic number.

1817822648360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1817822648360 is an abundant number, since it is smaller than the sum of its proper divisors (2450108789080).

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

1817822648360 is a wasteful number, since it uses less digits than its factorization.

1817822648360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975894217 (or 1975894213 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 1817822648360 in words is "one trillion, eight hundred seventeen billion, eight hundred twenty-two million, six hundred forty-eight thousand, three hundred sixty".