7164169939 has 2 divisors, whose sum is σ = 7164169940. Its totient is φ = 7164169938.

The previous prime is 7164169919. The next prime is 7164169993. The reversal of 7164169939 is 9399614617.

It is a happy number.

Together with next prime (7164169993) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7164169939 - 2¹³ = 7164161747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7164169939.

It is not a weakly prime, because it can be changed into another prime (7164169919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3582084969 + 3582084970.

It is an arithmetic number, because the mean of its divisors is an integer number (3582084970).

Almost surely, 2^7164169939 is an apocalyptic number.

7164169939 is a deficient number, since it is larger than the sum of its proper divisors (1).

7164169939 is an equidigital number, since it uses as much as digits as its factorization.

7164169939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 55.

The square root of 7164169939 is about 84641.4197600678. The cubic root of 7164169939 is about 1927.7703352798.

The spelling of 7164169939 in words is "seven billion, one hundred sixty-four million, one hundred sixty-nine thousand, nine hundred thirty-nine".