20727757760586 has 16 divisors (see below), whose sum is σ = 41457261963168. Its totient is φ = 6908961513200.

The previous prime is 20727757760509. The next prime is 20727757760587. The reversal of 20727757760586 is 68506775772702.

It is a self number, because there is not a number n which added to its sum of digits gives 20727757760586.

It is not an unprimeable number, because it can be changed into a prime (20727757760587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72614100 + ... + 72898991.

It is an arithmetic number, because the mean of its divisors is an integer number (2591078872698).

Almost surely, 2^{20727757760586} is an apocalyptic number.

20727757760586 is an abundant number, since it is smaller than the sum of its proper divisors (20729504202582).

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

20727757760586 is a wasteful number, since it uses less digits than its factorization.

20727757760586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145536837.

The product of its (nonzero) digits is 484041600, while the sum is 69.

The spelling of 20727757760586 in words is "twenty trillion, seven hundred twenty-seven billion, seven hundred fifty-seven million, seven hundred sixty thousand, five hundred eighty-six".