7879867901 has 2 divisors, whose sum is σ = 7879867902. Its totient is φ = 7879867900.

The previous prime is 7879867843. The next prime is 7879867903. The reversal of 7879867901 is 1097689787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7144644676 + 735223225 = 84526^2 + 27115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7879867901 is a prime.

Together with 7879867903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7879867903) 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, 3939933950 + 3939933951.

It is an arithmetic number, because the mean of its divisors is an integer number (3939933951).

Almost surely, 2^7879867901 is an apocalyptic number.

It is an amenable number.

7879867901 is a deficient number, since it is larger than the sum of its proper divisors (1).

7879867901 is an equidigital number, since it uses as much as digits as its factorization.

7879867901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10668672, while the sum is 62.

The square root of 7879867901 is about 88768.6200241955. The cubic root of 7879867901 is about 1989.9384593310.

The spelling of 7879867901 in words is "seven billion, eight hundred seventy-nine million, eight hundred sixty-seven thousand, nine hundred one".