6442672650 has 48 divisors (see below), whose sum is σ = 16493253888. Its totient is φ = 1662624000.

The previous prime is 6442672609. The next prime is 6442672667. The reversal of 6442672650 is 562762446.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 688111 + ... + 697410.

It is an arithmetic number, because the mean of its divisors is an integer number (343609456).

Almost surely, 2^6442672650 is an apocalyptic number.

6442672650 is an abundant number, since it is smaller than the sum of its proper divisors (10050581238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6442672650 is a wasteful number, since it uses less digits than its factorization.

6442672650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385567 (or 1385562 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The square root of 6442672650 is about 80266.2609693513. The cubic root of 6442672650 is about 1860.7528314525.

The spelling of 6442672650 in words is "six billion, four hundred forty-two million, six hundred seventy-two thousand, six hundred fifty".