13478745604 has 9 divisors (see below), whose sum is σ = 23588211157. Its totient is φ = 6739256704.

The previous prime is 13478745583. The next prime is 13478745619. The reversal of 13478745604 is 40654787431.

The square root of 13478745604 is 116098.

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

It can be written as a sum of positive squares in only one way, i.e., 9840243204 + 3638502400 = 99198^2 + 60320^2 .

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, 203172 + ... + 261220.

Almost surely, 2^13478745604 is an apocalyptic number.

13478745604 is the 116098-th square number.

It is an amenable number.

13478745604 is a deficient number, since it is larger than the sum of its proper divisors (10109465553).

13478745604 is an frugal number, since it uses more digits than its factorization.

13478745604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116102 (or 58051 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

Multiplying 13478745604 by its sum of digits (49), we get a square (660458534596 = 812686²).

The spelling of 13478745604 in words is "thirteen billion, four hundred seventy-eight million, seven hundred forty-five thousand, six hundred four".