7399478893693 has 2 divisors, whose sum is σ = 7399478893694. Its totient is φ = 7399478893692.

The previous prime is 7399478893673. The next prime is 7399478893747. The reversal of 7399478893693 is 3963988749937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7399477159204 + 1734489 = 2720198^2 + 1317^2 .

It is an emirp because it is prime and its reverse (3963988749937) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7399478893693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7399478893693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7399478893673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3699739446846 + 3699739446847.

It is an arithmetic number, because the mean of its divisors is an integer number (3699739446847).

Almost surely, 2^{7399478893693} is an apocalyptic number.

It is an amenable number.

7399478893693 is a deficient number, since it is larger than the sum of its proper divisors (1).

7399478893693 is an equidigital number, since it uses as much as digits as its factorization.

7399478893693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13332791808, while the sum is 85.

The spelling of 7399478893693 in words is "seven trillion, three hundred ninety-nine billion, four hundred seventy-eight million, eight hundred ninety-three thousand, six hundred ninety-three".