7971228802 has 32 divisors (see below), whose sum is σ = 13090144320. Its totient is φ = 3627529920.

The previous prime is 7971228773. The next prime is 7971228809. The reversal of 7971228802 is 2088221797.

It is a happy number.

It is a super-2 number, since 2×7971228802² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7971228809) 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 15 ways as a sum of consecutive naturals, for example, 59688 + ... + 139660.

It is an arithmetic number, because the mean of its divisors is an integer number (409067010).

Almost surely, 2^7971228802 is an apocalyptic number.

7971228802 is a deficient number, since it is larger than the sum of its proper divisors (5118915518).

7971228802 is a wasteful number, since it uses less digits than its factorization.

7971228802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80098.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 7971228802 is about 89281.7383455318. The cubic root of 7971228802 is about 1997.5995201676.

The spelling of 7971228802 in words is "seven billion, nine hundred seventy-one million, two hundred twenty-eight thousand, eight hundred two".