7152439979 has 2 divisors, whose sum is σ = 7152439980. Its totient is φ = 7152439978.

The previous prime is 7152439951. The next prime is 7152439999. The reversal of 7152439979 is 9799342517.

It is a strong prime.

It is an emirp because it is prime and its reverse (9799342517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7152439979 - 2¹² = 7152435883 is a prime.

It is not a weakly prime, because it can be changed into another prime (7152439949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3576219989 + 3576219990.

It is an arithmetic number, because the mean of its divisors is an integer number (3576219990).

Almost surely, 2^7152439979 is an apocalyptic number.

7152439979 is a deficient number, since it is larger than the sum of its proper divisors (1).

7152439979 is an equidigital number, since it uses as much as digits as its factorization.

7152439979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 56.

The square root of 7152439979 is about 84572.0992940343. The cubic root of 7152439979 is about 1926.7176419619.

The spelling of 7152439979 in words is "seven billion, one hundred fifty-two million, four hundred thirty-nine thousand, nine hundred seventy-nine".