1819820456952 has 32 divisors (see below), whose sum is σ = 4560357702480. Its totient is φ = 605165944320.

The previous prime is 1819820456939. The next prime is 1819820456963. The reversal of 1819820456952 is 2596540289181.

It is a congruent number.

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, 90044353 + ... + 90064560.

Almost surely, 2^{1819820456952} is an apocalyptic number.

1819820456952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1819820456952 is an abundant number, since it is smaller than the sum of its proper divisors (2740537245528).

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

1819820456952 is a wasteful number, since it uses less digits than its factorization.

1819820456952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180109343 (or 180109339 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 60.

The spelling of 1819820456952 in words is "one trillion, eight hundred nineteen billion, eight hundred twenty million, four hundred fifty-six thousand, nine hundred fifty-two".