20027873736 has 48 divisors (see below), whose sum is σ = 58414634460. Its totient is φ = 6162422400.

The previous prime is 20027873729. The next prime is 20027873741. The reversal of 20027873736 is 63737872002.

20027873736 is a `hidden beast` number, since 2 + 0 + 0 + 278 + 7 + 373 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19957212900 + 70660836 = 141270^2 + 8406^2 .

It is a super-2 number, since 2×20027873736² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20027873691 and 20027873700.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10697715 + ... + 10699586.

Almost surely, 2^20027873736 is an apocalyptic number.

20027873736 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20027873736 is an abundant number, since it is smaller than the sum of its proper divisors (38386760724).

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

20027873736 is a wasteful number, since it uses less digits than its factorization.

20027873736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21397326 (or 21397319 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The spelling of 20027873736 in words is "twenty billion, twenty-seven million, eight hundred seventy-three thousand, seven hundred thirty-six".