6421674082 has 4 divisors (see below), whose sum is σ = 9632511126. Its totient is φ = 3210837040.

The previous prime is 6421674079. The next prime is 6421674097. The reversal of 6421674082 is 2804761246.

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., 6090397681 + 331276401 = 78041^2 + 18201^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1605418519 + ... + 1605418522.

Almost surely, 2^6421674082 is an apocalyptic number.

6421674082 is a deficient number, since it is larger than the sum of its proper divisors (3210837044).

6421674082 is a wasteful number, since it uses less digits than its factorization.

6421674082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210837043.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 6421674082 is about 80135.3485173678. The cubic root of 6421674082 is about 1858.7290506234.

The spelling of 6421674082 in words is "six billion, four hundred twenty-one million, six hundred seventy-four thousand, eighty-two".