39910380445 has 8 divisors (see below), whose sum is σ = 51576491736. Its totient is φ = 29472280896.

The previous prime is 39910380443. The next prime is 39910380451. The reversal of 39910380445 is 54408301993.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 847624996 + 39062755449 = 29114^2 + 197643^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39910380445 - 2¹ = 39910380443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39910380395 and 39910380404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39910380443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307002862 + ... + 307002991.

It is an arithmetic number, because the mean of its divisors is an integer number (6447061467).

Almost surely, 2^39910380445 is an apocalyptic number.

It is an amenable number.

39910380445 is a deficient number, since it is larger than the sum of its proper divisors (11666111291).

39910380445 is a wasteful number, since it uses less digits than its factorization.

39910380445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614005871.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 39910380445 in words is "thirty-nine billion, nine hundred ten million, three hundred eighty thousand, four hundred forty-five".