15478843396 has 9 divisors (see below), whose sum is σ = 27088411399. Its totient is φ = 7739297284.

The previous prime is 15478843361. The next prime is 15478843453. The reversal of 15478843396 is 69334887451.

The square root of 15478843396 is 124414.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15478843396.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 217725 + ... + 279931.

Almost surely, 2^15478843396 is an apocalyptic number.

15478843396 is the 124414-th square number.

It is an amenable number.

15478843396 is a deficient number, since it is larger than the sum of its proper divisors (11609568003).

15478843396 is an frugal number, since it uses more digits than its factorization.

15478843396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124418 (or 62209 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 58.

The spelling of 15478843396 in words is "fifteen billion, four hundred seventy-eight million, eight hundred forty-three thousand, three hundred ninety-six".