20527146877 has 2 divisors, whose sum is σ = 20527146878. Its totient is φ = 20527146876.

The previous prime is 20527146853. The next prime is 20527146901. The reversal of 20527146877 is 77864172502.

It is a balanced prime because it is at equal distance from previous prime (20527146853) and next prime (20527146901).

It can be written as a sum of positive squares in only one way, i.e., 16407304281 + 4119842596 = 128091^2 + 64186^2 .

It is a cyclic number.

It is not a de Polignac number, because 20527146877 - 2⁷ = 20527146749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20527146877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20527146817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10263573438 + 10263573439.

It is an arithmetic number, because the mean of its divisors is an integer number (10263573439).

Almost surely, 2^20527146877 is an apocalyptic number.

It is an amenable number.

20527146877 is a deficient number, since it is larger than the sum of its proper divisors (1).

20527146877 is an equidigital number, since it uses as much as digits as its factorization.

20527146877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1317120, while the sum is 49.

The spelling of 20527146877 in words is "twenty billion, five hundred twenty-seven million, one hundred forty-six thousand, eight hundred seventy-seven".