39810989064025 has 27 divisors (see below), whose sum is σ = 49460595185469. Its totient is φ = 31787638656480.

The previous prime is 39810989064019. The next prime is 39810989064053. The reversal of 39810989064025 is 52046098901893.

The square root of 39810989064025 is 6309595.

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

It can be written as a sum of positive squares in 4 ways, for example, as 21033410841 + 39789955653184 = 145029^2 + 6307928^2 .

It is not a de Polignac number, because 39810989064025 - 2³⁷ = 39673550110553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 23881816242 + ... + 23881817908.

Almost surely, 2^{39810989064025} is an apocalyptic number.

39810989064025 is the 6309595-th square number.

39810989064025 is the 3154798-th centered octagonal number.

It is an amenable number.

39810989064025 is a deficient number, since it is larger than the sum of its proper divisors (9649606121444).

39810989064025 is an frugal number, since it uses more digits than its factorization.

39810989064025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4858 (or 2429 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 64.

The spelling of 39810989064025 in words is "thirty-nine trillion, eight hundred ten billion, nine hundred eighty-nine million, sixty-four thousand, twenty-five".