20838375390024 has 80 divisors (see below), whose sum is σ = 58432847993520. Its totient is φ = 6938258433120.

The previous prime is 20838375389947. The next prime is 20838375390031. The reversal of 20838375390024 is 42009357383802.

20838375390024 is a `hidden beast` number, since 2 + 0 + 8 + 3 + 83 + 7 + 539 + 0 + 0 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17637322 + ... + 18781689.

It is an arithmetic number, because the mean of its divisors is an integer number (730410599919).

Almost surely, 2^{20838375390024} is an apocalyptic number.

20838375390024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20838375390024 is an abundant number, since it is smaller than the sum of its proper divisors (37594472603496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20838375390024 is a wasteful number, since it uses less digits than its factorization.

20838375390024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36419912 (or 36419899 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 20838375390024 in words is "twenty trillion, eight hundred thirty-eight billion, three hundred seventy-five million, three hundred ninety thousand, twenty-four".