39810736680625 has 15 divisors (see below), whose sum is σ = 49747693668013. Its totient is φ = 31848463153000.

The previous prime is 39810736680593. The next prime is 39810736680641. The reversal of 39810736680625 is 52608663701893.

The square root of 39810736680625 is 6309575.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3121161755761 + 36689574924864 = 1766681^2 + 6057192^2 .

It is not a de Polignac number, because 39810736680625 - 2⁵ = 39810736680593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 157613184 + ... + 157865566.

Almost surely, 2^{39810736680625} is an apocalyptic number.

39810736680625 is the 6309575-th square number.

39810736680625 is the 3154788-th centered octagonal number.

It is an amenable number.

39810736680625 is a deficient number, since it is larger than the sum of its proper divisors (9936956987388).

39810736680625 is an frugal number, since it uses more digits than its factorization.

39810736680625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504786 (or 252388 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 64.

The spelling of 39810736680625 in words is "thirty-nine trillion, eight hundred ten billion, seven hundred thirty-six million, six hundred eighty thousand, six hundred twenty-five".