7213328015 has 4 divisors (see below), whose sum is σ = 8655993624. Its totient is φ = 5770662408.

The previous prime is 7213327997. The next prime is 7213328029. The reversal of 7213328015 is 5108233127.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7213328015 - 2¹⁴ = 7213311631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721332797 + ... + 721332806.

It is an arithmetic number, because the mean of its divisors is an integer number (2163998406).

Almost surely, 2^7213328015 is an apocalyptic number.

7213328015 is a deficient number, since it is larger than the sum of its proper divisors (1442665609).

7213328015 is a wasteful number, since it uses less digits than its factorization.

7213328015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442665608.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 7213328015 is about 84931.3135127439. The cubic root of 7213328015 is about 1932.1695215334.

The spelling of 7213328015 in words is "seven billion, two hundred thirteen million, three hundred twenty-eight thousand, fifteen".