19141745740 has 96 divisors (see below), whose sum is σ = 44088287040. Its totient is φ = 6938566656.

The previous prime is 19141745737. The next prime is 19141745747. The reversal of 19141745740 is 4754714191.

It is not an unprimeable number, because it can be changed into a prime (19141745747) 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, 3140616 + ... + 3146704.

It is an arithmetic number, because the mean of its divisors is an integer number (459252990).

Almost surely, 2^19141745740 is an apocalyptic number.

19141745740 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 19141745740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22044143520).

19141745740 is an abundant number, since it is smaller than the sum of its proper divisors (24946541300).

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

19141745740 is a wasteful number, since it uses less digits than its factorization.

19141745740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331 (or 6329 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The spelling of 19141745740 in words is "nineteen billion, one hundred forty-one million, seven hundred forty-five thousand, seven hundred forty".