6240779688 has 64 divisors (see below), whose sum is σ = 18329572800. Its totient is φ = 1745671680.

The previous prime is 6240779647. The next prime is 6240779723. The reversal of 6240779688 is 8869770426.

It is a super-2 number, since 2×6240779688² = 77894662228306754688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905773 + ... + 912636.

It is an arithmetic number, because the mean of its divisors is an integer number (286399575).

Almost surely, 2^6240779688 is an apocalyptic number.

It is an amenable number.

6240779688 is an abundant number, since it is smaller than the sum of its proper divisors (12088793112).

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

6240779688 is a wasteful number, since it uses less digits than its factorization.

6240779688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818442 (or 1818438 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 57.

The square root of 6240779688 is about 78998.6056079473. The cubic root of 6240779688 is about 1841.1094923265.

The spelling of 6240779688 in words is "six billion, two hundred forty million, seven hundred seventy-nine thousand, six hundred eighty-eight".