6881382625 has 16 divisors (see below), whose sum is σ = 9248580432. Its totient is φ = 5081635200.

The previous prime is 6881382593. The next prime is 6881382661. The reversal of 6881382625 is 5262831886.

It can be written as a sum of positive squares in 8 ways, for example, as 1904362321 + 4977020304 = 43639^2 + 70548^2 .

It is not a de Polignac number, because 6881382625 - 2⁵ = 6881382593 is a prime.

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, 2115724 + ... + 2118973.

It is an arithmetic number, because the mean of its divisors is an integer number (578036277).

Almost surely, 2^6881382625 is an apocalyptic number.

6881382625 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6881382625 is a deficient number, since it is larger than the sum of its proper divisors (2367197807).

6881382625 is a wasteful number, since it uses less digits than its factorization.

6881382625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4234725 (or 4234715 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The square root of 6881382625 is about 82954.0995068960. The cubic root of 6881382625 is about 1902.0644803647.

The spelling of 6881382625 in words is "six billion, eight hundred eighty-one million, three hundred eighty-two thousand, six hundred twenty-five".