39405055005 has 24 divisors (see below), whose sum is σ = 68309418840. Its totient is φ = 21013776000.

The previous prime is 39405054943. The next prime is 39405055007. The reversal of 39405055005 is 50055050493.

39405055005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1839637881 + 37565417124 = 42891^2 + 193818^2 .

It is not a de Polignac number, because 39405055005 - 2¹¹ = 39405052957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39405055007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 430851 + ... + 514239.

It is an arithmetic number, because the mean of its divisors is an integer number (2846225785).

Almost surely, 2^39405055005 is an apocalyptic number.

It is an amenable number.

39405055005 is a deficient number, since it is larger than the sum of its proper divisors (28904363835).

39405055005 is a wasteful number, since it uses less digits than its factorization.

39405055005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93901 (or 93898 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The spelling of 39405055005 in words is "thirty-nine billion, four hundred five million, fifty-five thousand, five".