7215165730093 has 2 divisors, whose sum is σ = 7215165730094. Its totient is φ = 7215165730092.

The previous prime is 7215165730063. The next prime is 7215165730147. The reversal of 7215165730093 is 3900375615127.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7208806146084 + 6359584009 = 2684922^2 + 79747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7215165730093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7215165730063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3607582865046 + 3607582865047.

It is an arithmetic number, because the mean of its divisors is an integer number (3607582865047).

Almost surely, 2^{7215165730093} is an apocalyptic number.

It is an amenable number.

7215165730093 is a deficient number, since it is larger than the sum of its proper divisors (1).

7215165730093 is an equidigital number, since it uses as much as digits as its factorization.

7215165730093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1190700, while the sum is 49.

The spelling of 7215165730093 in words is "seven trillion, two hundred fifteen billion, one hundred sixty-five million, seven hundred thirty thousand, ninety-three".