6980409261 has 12 divisors (see below), whose sum is σ = 11523215392. Its totient is φ = 3988805256.

The previous prime is 6980409223. The next prime is 6980409281. The reversal of 6980409261 is 1629040896.

It is a happy number.

It is not a de Polignac number, because 6980409261 - 2⁷ = 6980409133 is a prime.

It is a super-2 number, since 2×6980409261² = 97452226902109132242, 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 (6980409281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55400011 + ... + 55400136.

Almost surely, 2^6980409261 is an apocalyptic number.

It is an amenable number.

6980409261 is a deficient number, since it is larger than the sum of its proper divisors (4542806131).

6980409261 is a wasteful number, since it uses less digits than its factorization.

6980409261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110800160 (or 110800157 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 6980409261 is about 83548.8435647077. The cubic root of 6980409261 is about 1911.1449565432.

The spelling of 6980409261 in words is "six billion, nine hundred eighty million, four hundred nine thousand, two hundred sixty-one".