20705507282862 has 80 divisors (see below), whose sum is σ = 47419597558080. Its totient is φ = 6749744504832.

The previous prime is 20705507282827. The next prime is 20705507282921. The reversal of 20705507282862 is 26828270550702.

20705507282862 is a `hidden beast` number, since 2 + 0 + 7 + 0 + 550 + 7 + 2 + 8 + 2 + 86 + 2 = 666.

It is a super-2 number, since 2×20705507282862² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 20705507282799 and 20705507282808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8759598 + ... + 10869294.

It is an arithmetic number, because the mean of its divisors is an integer number (592744969476).

Almost surely, 2^{20705507282862} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20705507282862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23709798779040).

20705507282862 is an abundant number, since it is smaller than the sum of its proper divisors (26714090275218).

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

20705507282862 is a wasteful number, since it uses less digits than its factorization.

20705507282862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111047 (or 2111038 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 20705507282862 in words is "twenty trillion, seven hundred five billion, five hundred seven million, two hundred eighty-two thousand, eight hundred sixty-two".