39640343603 has 16 divisors (see below), whose sum is σ = 45388999680. Its totient is φ = 33913195776.

The previous prime is 39640343599. The next prime is 39640343621. The reversal of 39640343603 is 30634304693.

It is a cyclic number.

It is not a de Polignac number, because 39640343603 - 2² = 39640343599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39640343683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14324726 + ... + 14327492.

It is an arithmetic number, because the mean of its divisors is an integer number (2836812480).

Almost surely, 2^39640343603 is an apocalyptic number.

39640343603 is a deficient number, since it is larger than the sum of its proper divisors (5748656077).

39640343603 is a wasteful number, since it uses less digits than its factorization.

39640343603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5906.

The product of its (nonzero) digits is 419904, while the sum is 41.

The spelling of 39640343603 in words is "thirty-nine billion, six hundred forty million, three hundred forty-three thousand, six hundred three".