39041840427 has 4 divisors (see below), whose sum is σ = 52055787240. Its totient is φ = 26027893616.

The previous prime is 39041840351. The next prime is 39041840443. The reversal of 39041840427 is 72404814093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 39041840427 - 2¹⁴ = 39041824043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39041840477) 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 3 ways as a sum of consecutive naturals, for example, 6506973402 + ... + 6506973407.

It is an arithmetic number, because the mean of its divisors is an integer number (13013946810).

Almost surely, 2^39041840427 is an apocalyptic number.

39041840427 is a deficient number, since it is larger than the sum of its proper divisors (13013946813).

39041840427 is a wasteful number, since it uses less digits than its factorization.

39041840427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13013946812.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 39041840427 in words is "thirty-nine billion, forty-one million, eight hundred forty thousand, four hundred twenty-seven".