20041477012693 has 2 divisors, whose sum is σ = 20041477012694. Its totient is φ = 20041477012692.

The previous prime is 20041477012691. The next prime is 20041477012709. The reversal of 20041477012693 is 39621077414002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11056968340804 + 8984508671889 = 3325202^2 + 2997417^2 .

It is a cyclic number.

It is not a de Polignac number, because 20041477012693 - 2¹ = 20041477012691 is a prime.

It is a super-2 number, since 2×20041477012693² (a number of 27 digits) contains 22 as substring.

Together with 20041477012691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20041477012691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020738506346 + 10020738506347.

It is an arithmetic number, because the mean of its divisors is an integer number (10020738506347).

Almost surely, 2^{20041477012693} is an apocalyptic number.

It is an amenable number.

20041477012693 is a deficient number, since it is larger than the sum of its proper divisors (1).

20041477012693 is an equidigital number, since it uses as much as digits as its factorization.

20041477012693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 20041477012693 in words is "twenty trillion, forty-one billion, four hundred seventy-seven million, twelve thousand, six hundred ninety-three".