20135769067 has 2 divisors, whose sum is σ = 20135769068. Its totient is φ = 20135769066.

The previous prime is 20135769053. The next prime is 20135769077. The reversal of 20135769067 is 76096753102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20135769067 is a prime.

It is not a weakly prime, because it can be changed into another prime (20135769077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067884533 + 10067884534.

It is an arithmetic number, because the mean of its divisors is an integer number (10067884534).

Almost surely, 2^20135769067 is an apocalyptic number.

20135769067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20135769067 is an equidigital number, since it uses as much as digits as its factorization.

20135769067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 20135769067 in words is "twenty billion, one hundred thirty-five million, seven hundred sixty-nine thousand, sixty-seven".