1818597724944 has 480 divisors, whose sum is σ = 6445299474432. Its totient is φ = 429877324800.

The previous prime is 1818597724907. The next prime is 1818597724981. The reversal of 1818597724944 is 4494277958181.

It is an interprime number because it is at equal distance from previous prime (1818597724907) and next prime (1818597724981).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37501257 + ... + 37549719.

Almost surely, 2^{1818597724944} is an apocalyptic number.

1818597724944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1818597724944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3222649737216).

1818597724944 is an abundant number, since it is smaller than the sum of its proper divisors (4626701749488).

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

1818597724944 is a wasteful number, since it uses less digits than its factorization.

1818597724944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48587 (or 48570 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 69.

The spelling of 1818597724944 in words is "one trillion, eight hundred eighteen billion, five hundred ninety-seven million, seven hundred twenty-four thousand, nine hundred forty-four".