39408505305 has 32 divisors (see below), whose sum is σ = 67914013440. Its totient is φ = 19398216960.

The previous prime is 39408505303. The next prime is 39408505309. The reversal of 39408505305 is 50350580493.

39408505305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39408505305 - 2¹ = 39408505303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39408505303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1953420 + ... + 1973490.

It is an arithmetic number, because the mean of its divisors is an integer number (2122312920).

Almost surely, 2^39408505305 is an apocalyptic number.

It is an amenable number.

39408505305 is a deficient number, since it is larger than the sum of its proper divisors (28505508135).

39408505305 is a wasteful number, since it uses less digits than its factorization.

39408505305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30161.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 39408505305 in words is "thirty-nine billion, four hundred eight million, five hundred five thousand, three hundred five".