13894478625 has 32 divisors (see below), whose sum is σ = 23135853312. Its totient is φ = 7405440000.

The previous prime is 13894478621. The next prime is 13894478723. The reversal of 13894478625 is 52687449831.

It is a happy number.

13894478625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13894478625 - 2² = 13894478621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13894478621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 588804 + ... + 611946.

It is an arithmetic number, because the mean of its divisors is an integer number (722995416).

Almost surely, 2^13894478625 is an apocalyptic number.

13894478625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13894478625 is a deficient number, since it is larger than the sum of its proper divisors (9241374687).

13894478625 is a wasteful number, since it uses less digits than its factorization.

13894478625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24762 (or 24752 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The spelling of 13894478625 in words is "thirteen billion, eight hundred ninety-four million, four hundred seventy-eight thousand, six hundred twenty-five".