19053604889 has 12 divisors (see below), whose sum is σ = 20963866980. Its totient is φ = 17304381600.

The previous prime is 19053604877. The next prime is 19053604901. The reversal of 19053604889 is 98840635091.

It is an interprime number because it is at equal distance from previous prime (19053604877) and next prime (19053604901).

It can be written as a sum of positive squares in 2 ways, for example, as 12343210000 + 6710394889 = 111100^2 + 81917^2 .

It is not a de Polignac number, because 19053604889 - 2²⁸ = 18785169433 is a prime.

It is a super-2 number, since 2×19053604889² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19053604889.

It is not an unprimeable number, because it can be changed into a prime (19053604819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46427 + ... + 200655.

It is an arithmetic number, because the mean of its divisors is an integer number (1746988915).

Almost surely, 2^19053604889 is an apocalyptic number.

It is an amenable number.

19053604889 is a deficient number, since it is larger than the sum of its proper divisors (1910262091).

19053604889 is a wasteful number, since it uses less digits than its factorization.

19053604889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155272 (or 155261 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 19053604889 in words is "nineteen billion, fifty-three million, six hundred four thousand, eight hundred eighty-nine".