13405423104 has 80 divisors (see below), whose sum is σ = 39681024240. Its totient is φ = 4468469760.

The previous prime is 13405423081. The next prime is 13405423111. The reversal of 13405423104 is 40132450431.

It is a happy number.

13405423104 is a `hidden beast` number, since 1 + 340 + 5 + 4 + 2 + 310 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471037 + ... + 498684.

It is an arithmetic number, because the mean of its divisors is an integer number (496012803).

Almost surely, 2^13405423104 is an apocalyptic number.

It is an amenable number.

13405423104 is an abundant number, since it is smaller than the sum of its proper divisors (26275601136).

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

13405423104 is an frugal number, since it uses more digits than its factorization.

13405423104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969748 (or 969726 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 13405423104 its reverse (40132450431), we get a palindrome (53537873535).

The spelling of 13405423104 in words is "thirteen billion, four hundred five million, four hundred twenty-three thousand, one hundred four".