20726568570 has 32 divisors (see below), whose sum is σ = 52361858880. Its totient is φ = 5236185600.

The previous prime is 20726568547. The next prime is 20726568601. The reversal of 20726568570 is 7586562702.

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 15 ways as a sum of consecutive naturals, for example, 18180631 + ... + 18181770.

It is an arithmetic number, because the mean of its divisors is an integer number (1636308090).

Almost surely, 2^20726568570 is an apocalyptic number.

20726568570 is an abundant number, since it is smaller than the sum of its proper divisors (31635290310).

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

20726568570 is a wasteful number, since it uses less digits than its factorization.

20726568570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36362430.

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 20726568570 in words is "twenty billion, seven hundred twenty-six million, five hundred sixty-eight thousand, five hundred seventy".