6865872761 has 16 divisors (see below), whose sum is σ = 7832567808. Its totient is φ = 5957437200.

The previous prime is 6865872719. The next prime is 6865872799. The reversal of 6865872761 is 1672785686.

It is not a de Polignac number, because 6865872761 - 2²² = 6861678457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6865872697 and 6865872706.

It is not an unprimeable number, because it can be changed into a prime (6865872361) 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, 89096 + ... + 147206.

It is an arithmetic number, because the mean of its divisors is an integer number (489535488).

Almost surely, 2^6865872761 is an apocalyptic number.

It is an amenable number.

6865872761 is a deficient number, since it is larger than the sum of its proper divisors (966695047).

6865872761 is a wasteful number, since it uses less digits than its factorization.

6865872761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58612.

The product of its digits is 6773760, while the sum is 56.

The square root of 6865872761 is about 82860.5621571565. The cubic root of 6865872761 is about 1900.6343921293.

The spelling of 6865872761 in words is "six billion, eight hundred sixty-five million, eight hundred seventy-two thousand, seven hundred sixty-one".