20693119902 has 32 divisors (see below), whose sum is σ = 50936911872. Its totient is φ = 5457525984.

The previous prime is 20693119871. The next prime is 20693119939. The reversal of 20693119902 is 20991139602.

It is a super-2 number, since 2×20693119902² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 18949198 + ... + 18950289.

It is an arithmetic number, because the mean of its divisors is an integer number (1591778496).

Almost surely, 2^20693119902 is an apocalyptic number.

20693119902 is an abundant number, since it is smaller than the sum of its proper divisors (30243791970).

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

20693119902 is a wasteful number, since it uses less digits than its factorization.

20693119902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37899512.

The product of its (nonzero) digits is 52488, while the sum is 42.

The spelling of 20693119902 in words is "twenty billion, six hundred ninety-three million, one hundred nineteen thousand, nine hundred two".