39849395915 has 16 divisors (see below), whose sum is σ = 54722450880. Its totient is φ = 27289374720.

The previous prime is 39849395903. The next prime is 39849395923. The reversal of 39849395915 is 51959394893.

39849395915 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 39849395915 - 2⁴ = 39849395899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721430 + ... + 774699.

It is an arithmetic number, because the mean of its divisors is an integer number (3420153180).

Almost surely, 2^39849395915 is an apocalyptic number.

39849395915 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

39849395915 is a deficient number, since it is larger than the sum of its proper divisors (14873054965).

39849395915 is a wasteful number, since it uses less digits than its factorization.

39849395915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496902.

The product of its digits is 47239200, while the sum is 65.

The spelling of 39849395915 in words is "thirty-nine billion, eight hundred forty-nine million, three hundred ninety-five thousand, nine hundred fifteen".