6981947607 has 4 divisors (see below), whose sum is σ = 9309263480. Its totient is φ = 4654631736.

The previous prime is 6981947593. The next prime is 6981947647. The reversal of 6981947607 is 7067491896.

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

It is not a de Polignac number, because 6981947607 - 2⁸ = 6981947351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981947647) 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, 1163657932 + ... + 1163657937.

It is an arithmetic number, because the mean of its divisors is an integer number (2327315870).

Almost surely, 2^6981947607 is an apocalyptic number.

6981947607 is a deficient number, since it is larger than the sum of its proper divisors (2327315873).

6981947607 is a wasteful number, since it uses less digits than its factorization.

6981947607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327315872.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 6981947607 is about 83558.0493250052. The cubic root of 6981947607 is about 1911.2853392506.

The spelling of 6981947607 in words is "six billion, nine hundred eighty-one million, nine hundred forty-seven thousand, six hundred seven".