20858733607 has 2 divisors, whose sum is σ = 20858733608. Its totient is φ = 20858733606.

The previous prime is 20858733601. The next prime is 20858733611. The reversal of 20858733607 is 70633785802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20858733607 - 2¹⁵ = 20858700839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20858733601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10429366803 + 10429366804.

It is an arithmetic number, because the mean of its divisors is an integer number (10429366804).

Almost surely, 2^20858733607 is an apocalyptic number.

20858733607 is a deficient number, since it is larger than the sum of its proper divisors (1).

20858733607 is an equidigital number, since it uses as much as digits as its factorization.

20858733607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 20858733607 in words is "twenty billion, eight hundred fifty-eight million, seven hundred thirty-three thousand, six hundred seven".