15673537636 has 9 divisors (see below), whose sum is σ = 27429129049. Its totient is φ = 7836643624.

The previous prime is 15673537619. The next prime is 15673537637. The reversal of 15673537636 is 63673537651.

The square root of 15673537636 is 125194.

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

15673537636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10668824100 + 5004713536 = 103290^2 + 70744^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15673537637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 219090 + ... + 281686.

Almost surely, 2^15673537636 is an apocalyptic number.

15673537636 is the 125194-th square number.

It is an amenable number.

15673537636 is a deficient number, since it is larger than the sum of its proper divisors (11755591413).

15673537636 is an frugal number, since it uses more digits than its factorization.

15673537636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125198 (or 62599 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 52.

The spelling of 15673537636 in words is "fifteen billion, six hundred seventy-three million, five hundred thirty-seven thousand, six hundred thirty-six".