20238067775 has 24 divisors (see below), whose sum is σ = 26734498704. Its totient is φ = 15144537600.

The previous prime is 20238067763. The next prime is 20238067819. The reversal of 20238067775 is 57776083202.

It is not a de Polignac number, because 20238067775 - 2²⁰ = 20237019199 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76796 + ... + 215345.

It is an arithmetic number, because the mean of its divisors is an integer number (1113937446).

Almost surely, 2^20238067775 is an apocalyptic number.

20238067775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20238067775 is a deficient number, since it is larger than the sum of its proper divisors (6496430929).

20238067775 is a wasteful number, since it uses less digits than its factorization.

20238067775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292331 (or 292326 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 20238067775 in words is "twenty billion, two hundred thirty-eight million, sixty-seven thousand, seven hundred seventy-five".