1819453852 has 12 divisors (see below), whose sum is σ = 3293839080. Its totient is φ = 878356976.

The previous prime is 1819453837. The next prime is 1819453877. The reversal of 1819453852 is 2583549181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7842358 + ... + 7842589.

It is an arithmetic number, because the mean of its divisors is an integer number (274486590).

Almost surely, 2^1819453852 is an apocalyptic number.

It is an amenable number.

1819453852 is a deficient number, since it is larger than the sum of its proper divisors (1474385228).

1819453852 is a wasteful number, since it uses less digits than its factorization.

1819453852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15684980 (or 15684978 counting only the distinct ones).

The product of its digits is 345600, while the sum is 46.

The square root of 1819453852 is about 42655.0565818403. The cubic root of 1819453852 is about 1220.8070115191.

The spelling of 1819453852 in words is "one billion, eight hundred nineteen million, four hundred fifty-three thousand, eight hundred fifty-two".