19219035040 has 96 divisors (see below), whose sum is σ = 47952717120. Its totient is φ = 7258927104.

The previous prime is 19219034981. The next prime is 19219035049. The reversal of 19219035040 is 4053091291.

It is a junction number, because it is equal to n+sod(n) for n = 19219034987 and 19219035005.

It is not an unprimeable number, because it can be changed into a prime (19219035049) 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, 922984 + ... + 943576.

It is an arithmetic number, because the mean of its divisors is an integer number (499507470).

Almost surely, 2^19219035040 is an apocalyptic number.

19219035040 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 19219035040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23976358560).

19219035040 is an abundant number, since it is smaller than the sum of its proper divisors (28733682080).

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

19219035040 is a wasteful number, since it uses less digits than its factorization.

19219035040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20934 (or 20926 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 19219035040 in words is "nineteen billion, two hundred nineteen million, thirty-five thousand, forty".