1819953494120 has 64 divisors (see below), whose sum is σ = 4134339014400. Its totient is φ = 720973059840.

The previous prime is 1819953494119. The next prime is 1819953494153. The reversal of 1819953494120 is 214943599181.

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, 15482126 + ... + 15599234.

It is an arithmetic number, because the mean of its divisors is an integer number (64599047100).

Almost surely, 2^{1819953494120} is an apocalyptic number.

1819953494120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1819953494120 is an abundant number, since it is smaller than the sum of its proper divisors (2314385520280).

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

1819953494120 is a wasteful number, since it uses less digits than its factorization.

1819953494120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120858 (or 120854 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 56.

The spelling of 1819953494120 in words is "one trillion, eight hundred nineteen billion, nine hundred fifty-three million, four hundred ninety-four thousand, one hundred twenty".