19347421104 has 80 divisors (see below), whose sum is σ = 60582848640. Its totient is φ = 5862853440.

The previous prime is 19347421091. The next prime is 19347421123. The reversal of 19347421104 is 40112474391.

19347421104 is a `hidden beast` number, since 1 + 93 + 47 + 421 + 104 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 2030962 + ... + 2040465.

It is an arithmetic number, because the mean of its divisors is an integer number (757285608).

Almost surely, 2^19347421104 is an apocalyptic number.

It is an amenable number.

19347421104 is an abundant number, since it is smaller than the sum of its proper divisors (41235427536).

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

19347421104 is a wasteful number, since it uses less digits than its factorization.

19347421104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071455 (or 4071443 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

Adding to 19347421104 its reverse (40112474391), we get a palindrome (59459895495).

The spelling of 19347421104 in words is "nineteen billion, three hundred forty-seven million, four hundred twenty-one thousand, one hundred four".