20380774199 has 32 divisors (see below), whose sum is σ = 21886402560. Its totient is φ = 18946418400.

The previous prime is 20380774189. The next prime is 20380774229. The reversal of 20380774199 is 99147708302.

It is a cyclic number.

It is not a de Polignac number, because 20380774199 - 2²⁰ = 20379725623 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 (20380774159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22176662 + ... + 22177580.

It is an arithmetic number, because the mean of its divisors is an integer number (683950080).

Almost surely, 2^20380774199 is an apocalyptic number.

20380774199 is a deficient number, since it is larger than the sum of its proper divisors (1505628361).

20380774199 is a wasteful number, since it uses less digits than its factorization.

20380774199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 20380774199 in words is "twenty billion, three hundred eighty million, seven hundred seventy-four thousand, one hundred ninety-nine".