19369487040 has 112 divisors (see below), whose sum is σ = 61529256672. Its totient is φ = 5162582016.

The previous prime is 19369487009. The next prime is 19369487051. The reversal of 19369487040 is 4078496391.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2566152 + ... + 2573688.

Almost surely, 2^19369487040 is an apocalyptic number.

19369487040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19369487040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30764628336).

19369487040 is an abundant number, since it is smaller than the sum of its proper divisors (42159769632).

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

19369487040 is a wasteful number, since it uses less digits than its factorization.

19369487040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10234 (or 10224 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 19369487040 in words is "nineteen billion, three hundred sixty-nine million, four hundred eighty-seven thousand, forty".