39636080641 has 4 divisors (see below), whose sum is σ = 39636676692. Its totient is φ = 39635484592.

The previous prime is 39636080639. The next prime is 39636080681. The reversal of 39636080641 is 14608063693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14608063693 = 3593 ⋅4065701.

It can be written as a sum of positive squares in 2 ways, for example, as 13293167616 + 26342913025 = 115296^2 + 162305^2 .

It is a cyclic number.

It is not a de Polignac number, because 39636080641 - 2¹ = 39636080639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39636080591 and 39636080600.

It is not an unprimeable number, because it can be changed into a prime (39636080611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183646 + ... + 336151.

It is an arithmetic number, because the mean of its divisors is an integer number (9909169173).

Almost surely, 2^39636080641 is an apocalyptic number.

It is an amenable number.

39636080641 is a deficient number, since it is larger than the sum of its proper divisors (596051).

39636080641 is an equidigital number, since it uses as much as digits as its factorization.

39636080641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596050.

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 39636080641 in words is "thirty-nine billion, six hundred thirty-six million, eighty thousand, six hundred forty-one".