7296118346221 has 4 divisors (see below), whose sum is σ = 7297900934812. Its totient is φ = 7294335757632.

The previous prime is 7296118346213. The next prime is 7296118346263. The reversal of 7296118346221 is 1226438116927.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3462409170025 + 3833709176196 = 1860755^2 + 1957986^2 .

It is a cyclic number.

It is not a de Polignac number, because 7296118346221 - 2³ = 7296118346213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7296118346201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891288156 + ... + 891296341.

It is an arithmetic number, because the mean of its divisors is an integer number (1824475233703).

Almost surely, 2^{7296118346221} is an apocalyptic number.

It is an amenable number.

7296118346221 is a deficient number, since it is larger than the sum of its proper divisors (1782588591).

7296118346221 is a wasteful number, since it uses less digits than its factorization.

7296118346221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782588590.

The product of its digits is 1741824, while the sum is 52.

The spelling of 7296118346221 in words is "seven trillion, two hundred ninety-six billion, one hundred eighteen million, three hundred forty-six thousand, two hundred twenty-one".