20604002019 has 16 divisors (see below), whose sum is σ = 27954296832. Its totient is φ = 13496286528.

The previous prime is 20604002011. The next prime is 20604002033. The reversal of 20604002019 is 91020040602.

It is not a de Polignac number, because 20604002019 - 2³ = 20604002011 is a prime.

It is a super-2 number, since 2×20604002019² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20604002019.

It is not an unprimeable number, because it can be changed into a prime (20604002011) 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, 121267 + ... + 236460.

It is an arithmetic number, because the mean of its divisors is an integer number (1747143552).

Almost surely, 2^20604002019 is an apocalyptic number.

20604002019 is a deficient number, since it is larger than the sum of its proper divisors (7350294813).

20604002019 is a wasteful number, since it uses less digits than its factorization.

20604002019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358066.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 20604002019 in words is "twenty billion, six hundred four million, two thousand, nineteen".