20013767702771 has 4 divisors (see below), whose sum is σ = 20045485243344. Its totient is φ = 19982050162200.

The previous prime is 20013767702767. The next prime is 20013767702807. The reversal of 20013767702771 is 17720776731002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20013767702771 - 2² = 20013767702767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013767702371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15858769340 + ... + 15858770601.

It is an arithmetic number, because the mean of its divisors is an integer number (5011371310836).

Almost surely, 2^{20013767702771} is an apocalyptic number.

20013767702771 is a deficient number, since it is larger than the sum of its proper divisors (31717540573).

20013767702771 is an equidigital number, since it uses as much as digits as its factorization.

20013767702771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31717540572.

The product of its (nonzero) digits is 1210104, while the sum is 50.

The spelling of 20013767702771 in words is "twenty trillion, thirteen billion, seven hundred sixty-seven million, seven hundred two thousand, seven hundred seventy-one".