1818420752204 has 24 divisors (see below), whose sum is σ = 3711062762400. Its totient is φ = 779323178928.

The previous prime is 1818420752177. The next prime is 1818420752219. The reversal of 1818420752204 is 4022570248181.

It is a super-2 number, since 2×1818420752204² (a number of 25 digits) contains 22 as substring.

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, 662688407 + ... + 662691150.

It is an arithmetic number, because the mean of its divisors is an integer number (154627615100).

Almost surely, 2^{1818420752204} is an apocalyptic number.

1818420752204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1818420752204 is an abundant number, since it is smaller than the sum of its proper divisors (1892642010196).

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

1818420752204 is a wasteful number, since it uses less digits than its factorization.

1818420752204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325379582 (or 1325379566 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 44.

The spelling of 1818420752204 in words is "one trillion, eight hundred eighteen billion, four hundred twenty million, seven hundred fifty-two thousand, two hundred four".