20127053536772 has 36 divisors (see below), whose sum is σ = 44124694297740. Its totient is φ = 7962350848704.

The previous prime is 20127053536739. The next prime is 20127053536823. The reversal of 20127053536772 is 27763535072102.

It can be written as a sum of positive squares in 2 ways, for example, as 1261182904576 + 18865870632196 = 1123024^2 + 4343486^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20127053536772.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3949576247 + ... + 3949581342.

It is an arithmetic number, because the mean of its divisors is an integer number (1225685952715).

Almost surely, 2^{20127053536772} is an apocalyptic number.

It is an amenable number.

20127053536772 is an abundant number, since it is smaller than the sum of its proper divisors (23997640760968).

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

20127053536772 is a wasteful number, since it uses less digits than its factorization.

20127053536772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7899157620 (or 7899157611 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 50.

The spelling of 20127053536772 in words is "twenty trillion, one hundred twenty-seven billion, fifty-three million, five hundred thirty-six thousand, seven hundred seventy-two".