19700636023 has 2 divisors, whose sum is σ = 19700636024. Its totient is φ = 19700636022.

The previous prime is 19700635991. The next prime is 19700636027. The reversal of 19700636023 is 32063600791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19700636023 - 2⁵ = 19700635991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19700636027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9850318011 + 9850318012.

It is an arithmetic number, because the mean of its divisors is an integer number (9850318012).

Almost surely, 2^19700636023 is an apocalyptic number.

19700636023 is a deficient number, since it is larger than the sum of its proper divisors (1).

19700636023 is an equidigital number, since it uses as much as digits as its factorization.

19700636023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 37.

The spelling of 19700636023 in words is "nineteen billion, seven hundred million, six hundred thirty-six thousand, twenty-three".