6642746050 has 12 divisors (see below), whose sum is σ = 12355507746. Its totient is φ = 2657098400.

The previous prime is 6642746023. The next prime is 6642746051. The reversal of 6642746050 is 506472466.

It can be written as a sum of positive squares in 3 ways, for example, as 2481334969 + 4161411081 = 49813^2 + 64509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6642745994 and 6642746012.

It is not an unprimeable number, because it can be changed into a prime (6642746051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66427411 + ... + 66427510.

Almost surely, 2^6642746050 is an apocalyptic number.

6642746050 is a deficient number, since it is larger than the sum of its proper divisors (5712761696).

6642746050 is a wasteful number, since it uses less digits than its factorization.

6642746050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132854933 (or 132854928 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 6642746050 is about 81503.0431947176. The cubic root of 6642746050 is about 1879.8183438860.

The spelling of 6642746050 in words is "six billion, six hundred forty-two million, seven hundred forty-six thousand, fifty".