819990050 has 48 divisors (see below), whose sum is σ = 1673330400. Its totient is φ = 296476800.

The previous prime is 819990023. The next prime is 819990077. The reversal of 819990050 is 50099918.

It is an interprime number because it is at equal distance from previous prime (819990023) and next prime (819990077).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94286 + ... + 102614.

It is an arithmetic number, because the mean of its divisors is an integer number (34861050).

Almost surely, 2^819990050 is an apocalyptic number.

819990050 is an abundant number, since it is smaller than the sum of its proper divisors (853340350).

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

819990050 is a wasteful number, since it uses less digits than its factorization.

819990050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8531 (or 8526 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 819990050 is about 28635.4683914896. The cubic root of 819990050 is about 935.9863764849.

The spelling of 819990050 in words is "eight hundred nineteen million, nine hundred ninety thousand, fifty".