7215361716113 has 12 divisors (see below), whose sum is σ = 7319843138724. Its totient is φ = 7112351500800.

The previous prime is 7215361716089. The next prime is 7215361716163. The reversal of 7215361716113 is 3116171635127.

It can be written as a sum of positive squares in 2 ways, for example, as 6320035105024 + 895326611089 = 2513968^2 + 946217^2 .

It is not a de Polignac number, because 7215361716113 - 2⁶ = 7215361716049 is a prime.

It is a super-2 number, since 2×7215361716113² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7215361716163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26242793 + ... + 26516313.

It is an arithmetic number, because the mean of its divisors is an integer number (609986928227).

Almost surely, 2^{7215361716113} is an apocalyptic number.

It is an amenable number.

7215361716113 is a deficient number, since it is larger than the sum of its proper divisors (104481422611).

7215361716113 is an equidigital number, since it uses as much as digits as its factorization.

7215361716113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278896 (or 278825 counting only the distinct ones).

The product of its digits is 158760, while the sum is 44.

The spelling of 7215361716113 in words is "seven trillion, two hundred fifteen billion, three hundred sixty-one million, seven hundred sixteen thousand, one hundred thirteen".