13925316609 has 10 divisors (see below), whose sum is σ = 20802016290. Its totient is φ = 9283544352.

The previous prime is 13925316583. The next prime is 13925316611. The reversal of 13925316609 is 90661352931.

13925316609 is a `hidden beast` number, since 1 + 3 + 9 + 2 + 5 + 31 + 6 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12843235584 + 1082081025 = 113328^2 + 32895^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13925316609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13925316659) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 85958664 + ... + 85958825.

It is an arithmetic number, because the mean of its divisors is an integer number (2080201629).

Almost surely, 2^13925316609 is an apocalyptic number.

It is an amenable number.

13925316609 is a deficient number, since it is larger than the sum of its proper divisors (6876699681).

13925316609 is an equidigital number, since it uses as much as digits as its factorization.

13925316609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171917501 (or 171917492 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The spelling of 13925316609 in words is "thirteen billion, nine hundred twenty-five million, three hundred sixteen thousand, six hundred nine".