7721082285 has 16 divisors (see below), whose sum is σ = 14118550656. Its totient is φ = 3529637568.

The previous prime is 7721082233. The next prime is 7721082311. The reversal of 7721082285 is 5822801277.

It is not a de Polignac number, because 7721082285 - 2⁹ = 7721081773 is a prime.

It is a super-2 number, since 2×7721082285² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36766954 + ... + 36767163.

It is an arithmetic number, because the mean of its divisors is an integer number (882409416).

Almost surely, 2^7721082285 is an apocalyptic number.

It is an amenable number.

7721082285 is a deficient number, since it is larger than the sum of its proper divisors (6397468371).

7721082285 is a wasteful number, since it uses less digits than its factorization.

7721082285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73534132.

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 7721082285 is about 87869.6892278560. The cubic root of 7721082285 is about 1976.4813783641.

The spelling of 7721082285 in words is "seven billion, seven hundred twenty-one million, eighty-two thousand, two hundred eighty-five".