1699981836 has 48 divisors (see below), whose sum is σ = 4551402240. Its totient is φ = 483768000.

The previous prime is 1699981817. The next prime is 1699981873. The reversal of 1699981836 is 6381899961.

It is a self number, because there is not a number n which added to its sum of digits gives 1699981836.

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, 19231 + ... + 61398.

It is an arithmetic number, because the mean of its divisors is an integer number (94820880).

Almost surely, 2^1699981836 is an apocalyptic number.

It is an amenable number.

1699981836 is an abundant number, since it is smaller than the sum of its proper divisors (2851420404).

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

1699981836 is a wasteful number, since it uses less digits than its factorization.

1699981836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80894 (or 80892 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 60.

The square root of 1699981836 is about 41230.8359847336. The cubic root of 1699981836 is about 1193.4789412399.

The spelling of 1699981836 in words is "one billion, six hundred ninety-nine million, nine hundred eighty-one thousand, eight hundred thirty-six".