7879521214 has 4 divisors (see below), whose sum is σ = 11819281824. Its totient is φ = 3939760606.

The previous prime is 7879521211. The next prime is 7879521239. The reversal of 7879521214 is 4121259787.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7879521211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1969880302 + ... + 1969880305.

It is an arithmetic number, because the mean of its divisors is an integer number (2954820456).

Almost surely, 2^7879521214 is an apocalyptic number.

7879521214 is a deficient number, since it is larger than the sum of its proper divisors (3939760610).

7879521214 is a wasteful number, since it uses less digits than its factorization.

7879521214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939760609.

The product of its digits is 282240, while the sum is 46.

The square root of 7879521214 is about 88766.6672462135. The cubic root of 7879521214 is about 1989.9092754276.

The spelling of 7879521214 in words is "seven billion, eight hundred seventy-nine million, five hundred twenty-one thousand, two hundred fourteen".