7218797802 has 16 divisors (see below), whose sum is σ = 15065317440. Its totient is φ = 2301645632.

The previous prime is 7218797797. The next prime is 7218797809. The reversal of 7218797802 is 2087978127.

It is a happy number.

It is a super-2 number, since 2×7218797802² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7218797809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26154927 + ... + 26155202.

It is an arithmetic number, because the mean of its divisors is an integer number (941582340).

Almost surely, 2^7218797802 is an apocalyptic number.

7218797802 is an abundant number, since it is smaller than the sum of its proper divisors (7846519638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7218797802 is a wasteful number, since it uses less digits than its factorization.

7218797802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52310157.

The product of its (nonzero) digits is 790272, while the sum is 51.

The square root of 7218797802 is about 84963.5086493019. The cubic root of 7218797802 is about 1932.6577790799.

The spelling of 7218797802 in words is "seven billion, two hundred eighteen million, seven hundred ninety-seven thousand, eight hundred two".