6713888121 has 16 divisors (see below), whose sum is σ = 9948556800. Its totient is φ = 4475000304.

The previous prime is 6713888099. The next prime is 6713888143. The reversal of 6713888121 is 1218883176.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6713888099) and next prime (6713888143).

It is not a de Polignac number, because 6713888121 - 2⁶ = 6713888057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6713888191) by changing a digit.

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, 122995 + ... + 168983.

It is an arithmetic number, because the mean of its divisors is an integer number (621784800).

Almost surely, 2^6713888121 is an apocalyptic number.

It is an amenable number.

6713888121 is a deficient number, since it is larger than the sum of its proper divisors (3234668679).

6713888121 is a wasteful number, since it uses less digits than its factorization.

6713888121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51405 (or 51399 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 6713888121 is about 81938.3190027718. The cubic root of 6713888121 is about 1886.5053159214.

The spelling of 6713888121 in words is "six billion, seven hundred thirteen million, eight hundred eighty-eight thousand, one hundred twenty-one".