7320199849957 has 2 divisors, whose sum is σ = 7320199849958. Its totient is φ = 7320199849956.

The previous prime is 7320199849951. The next prime is 7320199850027. The reversal of 7320199849957 is 7599489910237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5770608079681 + 1549591770276 = 2402209^2 + 1244826^2 .

It is a cyclic number.

It is not a de Polignac number, because 7320199849957 - 2⁷ = 7320199849829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7320199849957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7320199849951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3660099924978 + 3660099924979.

It is an arithmetic number, because the mean of its divisors is an integer number (3660099924979).

Almost surely, 2^{7320199849957} is an apocalyptic number.

It is an amenable number.

7320199849957 is a deficient number, since it is larger than the sum of its proper divisors (1).

7320199849957 is an equidigital number, since it uses as much as digits as its factorization.

7320199849957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 308629440, while the sum is 73.

The spelling of 7320199849957 in words is "seven trillion, three hundred twenty billion, one hundred ninety-nine million, eight hundred forty-nine thousand, nine hundred fifty-seven".