42640860026 has 8 divisors (see below), whose sum is σ = 64010381664. Its totient is φ = 21304066140.

The previous prime is 42640859999. The next prime is 42640860061. The reversal of 42640860026 is 62006804624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8178680 + ... + 8183891.

It is an arithmetic number, because the mean of its divisors is an integer number (8001297708).

Almost surely, 2^42640860026 is an apocalyptic number.

42640860026 is a deficient number, since it is larger than the sum of its proper divisors (21369521638).

42640860026 is a wasteful number, since it uses less digits than its factorization.

42640860026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16363876.

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 42640860026 in words is "forty-two billion, six hundred forty million, eight hundred sixty thousand, twenty-six".