1814803638752 has 96 divisors (see below), whose sum is σ = 3858972278112. Its totient is φ = 835157827584.

The previous prime is 1814803638749. The next prime is 1814803638779. The reversal of 1814803638752 is 2578363084181.

It is a super-2 number, since 2×1814803638752² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354936548 + ... + 354941660.

It is an arithmetic number, because the mean of its divisors is an integer number (40197627897).

Almost surely, 2^{1814803638752} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1814803638752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1929486139056).

1814803638752 is an abundant number, since it is smaller than the sum of its proper divisors (2044168639360).

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

1814803638752 is a wasteful number, since it uses less digits than its factorization.

1814803638752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7460 (or 7452 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 1814803638752 in words is "one trillion, eight hundred fourteen billion, eight hundred three million, six hundred thirty-eight thousand, seven hundred fifty-two".