6880509631 has 4 divisors (see below), whose sum is σ = 6881484600. Its totient is φ = 6879534664.

The previous prime is 6880509611. The next prime is 6880509673. The reversal of 6880509631 is 1369050886.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6880509631 - 2¹⁷ = 6880378559 is a prime.

It is a super-2 number, since 2×6880509631² = 94682825564567512322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6880509611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476821 + ... + 491038.

It is an arithmetic number, because the mean of its divisors is an integer number (1720371150).

Almost surely, 2^6880509631 is an apocalyptic number.

6880509631 is a deficient number, since it is larger than the sum of its proper divisors (974969).

6880509631 is an equidigital number, since it uses as much as digits as its factorization.

6880509631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974968.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 6880509631 is about 82948.8374300689. The cubic root of 6880509631 is about 1901.9840429879.

The spelling of 6880509631 in words is "six billion, eight hundred eighty million, five hundred nine thousand, six hundred thirty-one".