13039778994 has 32 divisors (see below), whose sum is σ = 28456868160. Its totient is φ = 3950553600.

The previous prime is 13039778987. The next prime is 13039779001. The reversal of 13039778994 is 49987793031.

It is a happy number.

13039778994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13039778987) and next prime (13039779001).

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 308074 + ... + 347834.

It is an arithmetic number, because the mean of its divisors is an integer number (889277130).

Almost surely, 2^13039778994 is an apocalyptic number.

13039778994 is an abundant number, since it is smaller than the sum of its proper divisors (15417089166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13039778994 is a wasteful number, since it uses less digits than its factorization.

13039778994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44746.

The product of its (nonzero) digits is 10287648, while the sum is 60.

The spelling of 13039778994 in words is "thirteen billion, thirty-nine million, seven hundred seventy-eight thousand, nine hundred ninety-four".