20538876238 has 8 divisors (see below), whose sum is σ = 30809032488. Its totient is φ = 10269198744.

The previous prime is 20538876233. The next prime is 20538876287. The reversal of 20538876238 is 83267883502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20538876233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20320 + ... + 203692.

It is an arithmetic number, because the mean of its divisors is an integer number (3851129061).

Almost surely, 2^20538876238 is an apocalyptic number.

20538876238 is a deficient number, since it is larger than the sum of its proper divisors (10270156250).

20538876238 is a wasteful number, since it uses less digits than its factorization.

20538876238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239378.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 20538876238 in words is "twenty billion, five hundred thirty-eight million, eight hundred seventy-six thousand, two hundred thirty-eight".