13457474744 has 64 divisors (see below), whose sum is σ = 29542268160. Its totient is φ = 5628142080.

The previous prime is 13457474713. The next prime is 13457474803. The reversal of 13457474744 is 44747475431.

It is a happy number.

It is a super-2 number, since 2×13457474744² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13457474692 and 13457474701.

It is a congruent number.

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, 384704 + ... + 418224.

It is an arithmetic number, because the mean of its divisors is an integer number (461597940).

Almost surely, 2^13457474744 is an apocalyptic number.

13457474744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13457474744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14771134080).

13457474744 is an abundant number, since it is smaller than the sum of its proper divisors (16084793416).

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

13457474744 is a wasteful number, since it uses less digits than its factorization.

13457474744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33708 (or 33704 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 50.

The spelling of 13457474744 in words is "thirteen billion, four hundred fifty-seven million, four hundred seventy-four thousand, seven hundred forty-four".