20133389919 has 16 divisors (see below), whose sum is σ = 28679146880. Its totient is φ = 12526034400.

The previous prime is 20133389873. The next prime is 20133389971. The reversal of 20133389919 is 91998333102.

It is not a de Polignac number, because 20133389919 - 2²¹ = 20131292767 is a prime.

It is a super-2 number, since 2×20133389919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133389719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2632132 + ... + 2639769.

It is an arithmetic number, because the mean of its divisors is an integer number (1792446680).

Almost surely, 2^20133389919 is an apocalyptic number.

20133389919 is a deficient number, since it is larger than the sum of its proper divisors (8545756961).

20133389919 is a wasteful number, since it uses less digits than its factorization.

20133389919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271990.

The product of its (nonzero) digits is 314928, while the sum is 48.

The spelling of 20133389919 in words is "twenty billion, one hundred thirty-three million, three hundred eighty-nine thousand, nine hundred nineteen".