20733090786 has 48 divisors (see below), whose sum is σ = 46123773696. Its totient is φ = 6727196448.

The previous prime is 20733090769. The next prime is 20733090793. The reversal of 20733090786 is 68709033702.

It is a happy number.

It is a super-2 number, since 2×20733090786² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181071 + ... + 272493.

It is an arithmetic number, because the mean of its divisors is an integer number (960911952).

Almost surely, 2^20733090786 is an apocalyptic number.

20733090786 is an abundant number, since it is smaller than the sum of its proper divisors (25390682910).

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

20733090786 is a wasteful number, since it uses less digits than its factorization.

20733090786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91767 (or 91764 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

It can be divided in two parts, 207330 and 90786, that added together give a square (298116 = 546²).

The spelling of 20733090786 in words is "twenty billion, seven hundred thirty-three million, ninety thousand, seven hundred eighty-six".