20083679690 has 8 divisors (see below), whose sum is σ = 36150623460. Its totient is φ = 8033471872.

The previous prime is 20083679683. The next prime is 20083679701. The reversal of 20083679690 is 9697638002.

It can be written as a sum of positive squares in 2 ways, for example, as 16143481249 + 3940198441 = 127057^2 + 62771^2 .

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

It is a super-2 number, since 2×20083679690² (a number of 21 digits) contains 22 as substring.

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, 1004183975 + ... + 1004183994.

Almost surely, 2^20083679690 is an apocalyptic number.

20083679690 is a deficient number, since it is larger than the sum of its proper divisors (16066943770).

20083679690 is a wasteful number, since it uses less digits than its factorization.

20083679690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008367976.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 20083679690 in words is "twenty billion, eighty-three million, six hundred seventy-nine thousand, six hundred ninety".