19413379684 has 24 divisors (see below), whose sum is σ = 34523218520. Its totient is φ = 9550255104.

The previous prime is 19413379681. The next prime is 19413379691. The reversal of 19413379684 is 48697331491.

It can be written as a sum of positive squares in 4 ways, for example, as 14325696100 + 5087683584 = 119690^2 + 71328^2 .

It is not an unprimeable number, because it can be changed into a prime (19413379681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38152 + ... + 200704.

Almost surely, 2^19413379684 is an apocalyptic number.

It is an amenable number.

19413379684 is a deficient number, since it is larger than the sum of its proper divisors (15109838836).

19413379684 is a wasteful number, since it uses less digits than its factorization.

19413379684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163039 (or 163037 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 55.

The spelling of 19413379684 in words is "nineteen billion, four hundred thirteen million, three hundred seventy-nine thousand, six hundred eighty-four".