13068147856 has 15 divisors (see below), whose sum is σ = 25320422451. Its totient is φ = 6533845296.

The previous prime is 13068147839. The next prime is 13068147863. The reversal of 13068147856 is 65874186031.

It is a happy number.

The square root of 13068147856 is 114316.

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

It is a Duffinian number.

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, 442975 + ... + 471553.

Almost surely, 2^13068147856 is an apocalyptic number.

13068147856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

13068147856 is the 114316-th square number.

It is an amenable number.

13068147856 is a deficient number, since it is larger than the sum of its proper divisors (12252274595).

13068147856 is an frugal number, since it uses more digits than its factorization.

13068147856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57166 (or 28581 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

Multiplying 13068147856 by its sum of digits (49), we get a square (640339244944 = 800212²).

The spelling of 13068147856 in words is "thirteen billion, sixty-eight million, one hundred forty-seven thousand, eight hundred fifty-six".