1819852642 has 8 divisors (see below), whose sum is σ = 2873451600. Its totient is φ = 862035444.

The previous prime is 1819852633. The next prime is 1819852663. The reversal of 1819852642 is 2462589181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1819852592 and 1819852601.

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, 23945392 + ... + 23945467.

It is an arithmetic number, because the mean of its divisors is an integer number (359181450).

Almost surely, 2^1819852642 is an apocalyptic number.

1819852642 is a deficient number, since it is larger than the sum of its proper divisors (1053598958).

1819852642 is a wasteful number, since it uses less digits than its factorization.

1819852642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47890880.

The product of its digits is 276480, while the sum is 46.

The square root of 1819852642 is about 42659.7309180449. The cubic root of 1819852642 is about 1220.8961976344.

The spelling of 1819852642 in words is "one billion, eight hundred nineteen million, eight hundred fifty-two thousand, six hundred forty-two".