20838808375 has 128 divisors (see below), whose sum is σ = 33730265088. Its totient is φ = 12474000000.

The previous prime is 20838808373. The next prime is 20838808399. The reversal of 20838808375 is 57380883802.

It is not a de Polignac number, because 20838808375 - 2¹ = 20838808373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20838808373) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 62956960 + ... + 62957290.

It is an arithmetic number, because the mean of its divisors is an integer number (263517696).

Almost surely, 2^20838808375 is an apocalyptic number.

20838808375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20838808375 is a deficient number, since it is larger than the sum of its proper divisors (12891456713).

20838808375 is a wasteful number, since it uses less digits than its factorization.

20838808375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 20838808375 in words is "twenty billion, eight hundred thirty-eight million, eight hundred eight thousand, three hundred seventy-five".