6981477674 has 4 divisors (see below), whose sum is σ = 10472216514. Its totient is φ = 3490738836.

The previous prime is 6981477673. The next prime is 6981477689. The reversal of 6981477674 is 4767741896.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 6252855625 + 728622049 = 79075^2 + 26993^2 .

It is not an unprimeable number, because it can be changed into a prime (6981477673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1745369417 + ... + 1745369420.

Almost surely, 2^6981477674 is an apocalyptic number.

6981477674 is a deficient number, since it is larger than the sum of its proper divisors (3490738840).

6981477674 is a wasteful number, since it uses less digits than its factorization.

6981477674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490738839.

The product of its digits is 14224896, while the sum is 59.

The square root of 6981477674 is about 83555.2372625439. The cubic root of 6981477674 is about 1911.2424574142.

The spelling of 6981477674 in words is "six billion, nine hundred eighty-one million, four hundred seventy-seven thousand, six hundred seventy-four".