20683853379 has 24 divisors (see below), whose sum is σ = 35629331712. Its totient is φ = 11305459440.

The previous prime is 20683853341. The next prime is 20683853401. The reversal of 20683853379 is 97335838602.

20683853379 is a `hidden beast` number, since 2 + 0 + 6 + 8 + 38 + 533 + 79 = 666.

It is not a de Polignac number, because 20683853379 - 2⁹ = 20683852867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20683853579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7135837 + ... + 7138734.

It is an arithmetic number, because the mean of its divisors is an integer number (1484555488).

Almost surely, 2^20683853379 is an apocalyptic number.

20683853379 is a deficient number, since it is larger than the sum of its proper divisors (14945478333).

20683853379 is a wasteful number, since it uses less digits than its factorization.

20683853379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14274607 (or 14274604 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 20683853379 in words is "twenty billion, six hundred eighty-three million, eight hundred fifty-three thousand, three hundred seventy-nine".