7820068684 has 6 divisors (see below), whose sum is σ = 13685120204. Its totient is φ = 3910034340.

The previous prime is 7820068679. The next prime is 7820068757. The reversal of 7820068684 is 4868600287.

It is a super-2 number, since 2×7820068684² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977508582 + ... + 977508589.

Almost surely, 2^7820068684 is an apocalyptic number.

It is an amenable number.

7820068684 is a deficient number, since it is larger than the sum of its proper divisors (5865051520).

7820068684 is a wasteful number, since it uses less digits than its factorization.

7820068684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955017175 (or 1955017173 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

The square root of 7820068684 is about 88431.1522258983. The cubic root of 7820068684 is about 1984.8918834493.

The spelling of 7820068684 in words is "seven billion, eight hundred twenty million, sixty-eight thousand, six hundred eighty-four".