19089543036 has 96 divisors (see below), whose sum is σ = 46901514240. Its totient is φ = 6031466496.

The previous prime is 19089543001. The next prime is 19089543037. The reversal of 19089543036 is 63034598091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19089543037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16555836 + ... + 16556988.

It is an arithmetic number, because the mean of its divisors is an integer number (488557440).

Almost surely, 2^19089543036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19089543036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23450757120).

19089543036 is an abundant number, since it is smaller than the sum of its proper divisors (27811971204).

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

19089543036 is a wasteful number, since it uses less digits than its factorization.

19089543036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675 (or 1673 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

It can be divided in two parts, 1908954 and 3036, that added together give a triangular number (1911990 = T₁₉₅₅).

The spelling of 19089543036 in words is "nineteen billion, eighty-nine million, five hundred forty-three thousand, thirty-six".