20907283086 has 48 divisors (see below), whose sum is σ = 46996950000. Its totient is φ = 6966114048.

The previous prime is 20907283079. The next prime is 20907283109. The reversal of 20907283086 is 68038270902.

It is a super-2 number, since 2×20907283086² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1328190 + ... + 1343838.

It is an arithmetic number, because the mean of its divisors is an integer number (979103125).

Almost surely, 2^20907283086 is an apocalyptic number.

20907283086 is an abundant number, since it is smaller than the sum of its proper divisors (26089666914).

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

20907283086 is a wasteful number, since it uses less digits than its factorization.

20907283086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18415 (or 18403 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 20907283086 in words is "twenty billion, nine hundred seven million, two hundred eighty-three thousand, eighty-six".