13249409854 has 16 divisors (see below), whose sum is σ = 20742228000. Its totient is φ = 6335445600.

The previous prime is 13249409837. The next prime is 13249409861. The reversal of 13249409854 is 45890494231.

It is a happy number.

13249409854 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13249409854² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13249409798 and 13249409807.

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, 239404 + ... + 289504.

It is an arithmetic number, because the mean of its divisors is an integer number (1296389250).

Almost surely, 2^13249409854 is an apocalyptic number.

13249409854 is a deficient number, since it is larger than the sum of its proper divisors (7492818146).

13249409854 is a wasteful number, since it uses less digits than its factorization.

13249409854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55875.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 13249409854 in words is "thirteen billion, two hundred forty-nine million, four hundred nine thousand, eight hundred fifty-four".