42662646644 has 12 divisors (see below), whose sum is σ = 74662433664. Its totient is φ = 21330522744.

The previous prime is 42662646613. The next prime is 42662646647. The reversal of 42662646644 is 44664626624.

It is a junction number, because it is equal to n+sod(n) for n = 42662646592 and 42662646601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42662646647) 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, 70982 + ... + 300605.

It is an arithmetic number, because the mean of its divisors is an integer number (6221869472).

Almost surely, 2^42662646644 is an apocalyptic number.

It is an amenable number.

42662646644 is a deficient number, since it is larger than the sum of its proper divisors (31999787020).

42662646644 is a wasteful number, since it uses less digits than its factorization.

42662646644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400294 (or 400292 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 50.

The spelling of 42662646644 in words is "forty-two billion, six hundred sixty-two million, six hundred forty-six thousand, six hundred forty-four".