39430640610025 has 18 divisors (see below), whose sum is σ = 56876687314350. Its totient is φ = 27038153560320.

The previous prime is 39430640609989. The next prime is 39430640610029. The reversal of 39430640610025 is 52001604603493.

It can be written as a sum of positive squares in 3 ways, for example, as 4955200656784 + 34475439953241 = 2226028^2 + 5871579^2 .

It is not a de Polignac number, because 39430640610025 - 2¹⁷ = 39430640478953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39430640610029) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16094137800 + ... + 16094140249.

Almost surely, 2^{39430640610025} is an apocalyptic number.

39430640610025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39430640610025 is a deficient number, since it is larger than the sum of its proper divisors (17446046704325).

39430640610025 is a wasteful number, since it uses less digits than its factorization.

39430640610025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32188278073 (or 32188278061 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 39430640610025 in words is "thirty-nine trillion, four hundred thirty billion, six hundred forty million, six hundred ten thousand, twenty-five".