36605144738 has 18 divisors (see below), whose sum is σ = 55878499089. Its totient is φ = 17984512632.

The previous prime is 36605144711. The next prime is 36605144761. The reversal of 36605144738 is 83744150663.

It can be written as a sum of positive squares in 2 ways, for example, as 34914043609 + 1691101129 = 186853^2 + 41123^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=135287.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36605144692 and 36605144701.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15962720 + ... + 15965012.

Almost surely, 2^36605144738 is an apocalyptic number.

36605144738 is a deficient number, since it is larger than the sum of its proper divisors (19273354351).

36605144738 is an frugal number, since it uses more digits than its factorization.

36605144738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706 (or 2354 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 36605144738 in words is "thirty-six billion, six hundred five million, one hundred forty-four thousand, seven hundred thirty-eight".