163839934713 has 24 divisors (see below), whose sum is σ = 273666707328. Its totient is φ = 86421063456.

The previous prime is 163839934697. The next prime is 163839934781. The reversal of 163839934713 is 317439938361.

It is a happy number.

It is not a de Polignac number, because 163839934713 - 2⁴ = 163839934697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163839932713) 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, 42865681 + ... + 42869502.

It is an arithmetic number, because the mean of its divisors is an integer number (11402779472).

Almost surely, 2^163839934713 is an apocalyptic number.

163839934713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

163839934713 is a deficient number, since it is larger than the sum of its proper divisors (109826772615).

163839934713 is a wasteful number, since it uses less digits than its factorization.

163839934713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85735213 (or 85735206 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 57.

The spelling of 163839934713 in words is "one hundred sixty-three billion, eight hundred thirty-nine million, nine hundred thirty-four thousand, seven hundred thirteen".