19374220380 has 48 divisors (see below), whose sum is σ = 54270397440. Its totient is φ = 5164308288.

The previous prime is 19374220351. The next prime is 19374220387. The reversal of 19374220380 is 8302247391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19374220387) 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, 80841 + ... + 212799.

It is an arithmetic number, because the mean of its divisors is an integer number (1130633280).

Almost surely, 2^19374220380 is an apocalyptic number.

19374220380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19374220380 is an abundant number, since it is smaller than the sum of its proper divisors (34896177060).

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

19374220380 is a wasteful number, since it uses less digits than its factorization.

19374220380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134418 (or 134416 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 19374220380 in words is "nineteen billion, three hundred seventy-four million, two hundred twenty thousand, three hundred eighty".