13423738734 has 48 divisors (see below), whose sum is σ = 33271162080. Its totient is φ = 3831727680.

The previous prime is 13423738733. The next prime is 13423738739. The reversal of 13423738734 is 43783732431.

13423738734 is a `hidden beast` number, since 1 + 3 + 4 + 237 + 387 + 34 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 13423738734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423738733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84864 + ... + 184524.

It is an arithmetic number, because the mean of its divisors is an integer number (693149210).

Almost surely, 2^13423738734 is an apocalyptic number.

13423738734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13423738734 is an abundant number, since it is smaller than the sum of its proper divisors (19847423346).

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

13423738734 is a wasteful number, since it uses less digits than its factorization.

13423738734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100745 (or 100742 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The spelling of 13423738734 in words is "thirteen billion, four hundred twenty-three million, seven hundred thirty-eight thousand, seven hundred thirty-four".