13820204475 has 384 divisors, whose sum is σ = 33554995200. Its totient is φ = 5409331200.

The previous prime is 13820204473. The next prime is 13820204491. The reversal of 13820204475 is 57440202831.

It is a happy number.

13820204475 is a `hidden beast` number, since 1 + 3 + 8 + 202 + 0 + 447 + 5 = 666.

It is not a de Polignac number, because 13820204475 - 2¹ = 13820204473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13820204471) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 79885489 + ... + 79885661.

It is an arithmetic number, because the mean of its divisors is an integer number (87382800).

Almost surely, 2^13820204475 is an apocalyptic number.

13820204475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13820204475 is an abundant number, since it is smaller than the sum of its proper divisors (19734790725).

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

13820204475 is a wasteful number, since it uses less digits than its factorization.

13820204475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 13820204475 in words is "thirteen billion, eight hundred twenty million, two hundred four thousand, four hundred seventy-five".