20191726067 has 2 divisors, whose sum is σ = 20191726068. Its totient is φ = 20191726066.

The previous prime is 20191726019. The next prime is 20191726097. The reversal of 20191726067 is 76062719102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20191726067 - 2⁸ = 20191725811 is a prime.

It is not a weakly prime, because it can be changed into another prime (20191726097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10095863033 + 10095863034.

It is an arithmetic number, because the mean of its divisors is an integer number (10095863034).

Almost surely, 2^20191726067 is an apocalyptic number.

20191726067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20191726067 is an equidigital number, since it uses as much as digits as its factorization.

20191726067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 20191726067 in words is "twenty billion, one hundred ninety-one million, seven hundred twenty-six thousand, sixty-seven".