6880515647 has 16 divisors (see below), whose sum is σ = 7109860800. Its totient is φ = 6656090112.

The previous prime is 6880515643. The next prime is 6880515659. The reversal of 6880515647 is 7465150886.

It is a cyclic number.

It is not a de Polignac number, because 6880515647 - 2² = 6880515643 is a prime.

It is a super-2 number, since 2×6880515647² = 94682991137223657218, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6880515595 and 6880515604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6880515643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 795854 + ... + 804452.

It is an arithmetic number, because the mean of its divisors is an integer number (444366300).

Almost surely, 2^6880515647 is an apocalyptic number.

6880515647 is a deficient number, since it is larger than the sum of its proper divisors (229345153).

6880515647 is a wasteful number, since it uses less digits than its factorization.

6880515647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8882.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The square root of 6880515647 is about 82948.8736933781. The cubic root of 6880515647 is about 1901.9845973234.

The spelling of 6880515647 in words is "six billion, eight hundred eighty million, five hundred fifteen thousand, six hundred forty-seven".