7682147007721 has 32 divisors (see below), whose sum is σ = 7981954420608. Its totient is φ = 7389220101120.

The previous prime is 7682147007719. The next prime is 7682147007739. The reversal of 7682147007721 is 1277007412867.

It is a cyclic number.

It is not a de Polignac number, because 7682147007721 - 2¹ = 7682147007719 is a prime.

It is a super-2 number, since 2×7682147007721² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7682147007751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 885341635 + ... + 885350311.

It is an arithmetic number, because the mean of its divisors is an integer number (249436075644).

Almost surely, 2^{7682147007721} is an apocalyptic number.

It is an amenable number.

7682147007721 is a deficient number, since it is larger than the sum of its proper divisors (299807412887).

7682147007721 is a wasteful number, since it uses less digits than its factorization.

7682147007721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9961.

The product of its (nonzero) digits is 1843968, while the sum is 52.

The spelling of 7682147007721 in words is "seven trillion, six hundred eighty-two billion, one hundred forty-seven million, seven thousand, seven hundred twenty-one".