7879283121 has 16 divisors (see below), whose sum is σ = 10980307584. Its totient is φ = 5016299904.

The previous prime is 7879283101. The next prime is 7879283141. The reversal of 7879283121 is 1213829787.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7879283101) and next prime (7879283141).

It is not a de Polignac number, because 7879283121 - 2¹⁰ = 7879282097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7879283101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49966 + ... + 135111.

It is an arithmetic number, because the mean of its divisors is an integer number (686269224).

Almost surely, 2^7879283121 is an apocalyptic number.

It is an amenable number.

7879283121 is a deficient number, since it is larger than the sum of its proper divisors (3101024463).

7879283121 is a wasteful number, since it uses less digits than its factorization.

7879283121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185720.

The product of its digits is 338688, while the sum is 48.

The square root of 7879283121 is about 88765.3261189300. The cubic root of 7879283121 is about 1989.8892324060.

The spelling of 7879283121 in words is "seven billion, eight hundred seventy-nine million, two hundred eighty-three thousand, one hundred twenty-one".