7164400879 has 2 divisors, whose sum is σ = 7164400880. Its totient is φ = 7164400878.

The previous prime is 7164400853. The next prime is 7164400897. The reversal of 7164400879 is 9780044617.

Together with next prime (7164400897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7164400879 - 2⁷ = 7164400751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7164400829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3582200439 + 3582200440.

It is an arithmetic number, because the mean of its divisors is an integer number (3582200440).

Almost surely, 2^7164400879 is an apocalyptic number.

7164400879 is a deficient number, since it is larger than the sum of its proper divisors (1).

7164400879 is an equidigital number, since it uses as much as digits as its factorization.

7164400879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 7164400879 is about 84642.7839747725. The cubic root of 7164400879 is about 1927.7910492169.

The spelling of 7164400879 in words is "seven billion, one hundred sixty-four million, four hundred thousand, eight hundred seventy-nine".