13601139773 has 12 divisors (see below), whose sum is σ = 14769648180. Its totient is φ = 12519277056.

The previous prime is 13601139767. The next prime is 13601139793. The reversal of 13601139773 is 37793110631.

It can be written as a sum of positive squares in 6 ways, for example, as 1442328484 + 12158811289 = 37978^2 + 110267^2 .

It is not a de Polignac number, because 13601139773 - 2⁴ = 13601139757 is a prime.

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 13601139773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13601139793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54338 + ... + 173651.

It is an arithmetic number, because the mean of its divisors is an integer number (1230804015).

Almost surely, 2^13601139773 is an apocalyptic number.

13601139773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13601139773 is a deficient number, since it is larger than the sum of its proper divisors (1168508407).

13601139773 is a wasteful number, since it uses less digits than its factorization.

13601139773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228368 (or 228355 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 41.

The spelling of 13601139773 in words is "thirteen billion, six hundred one million, one hundred thirty-nine thousand, seven hundred seventy-three".