42626425646 has 48 divisors (see below), whose sum is σ = 77830652736. Its totient is φ = 17439274944.

The previous prime is 42626425627. The next prime is 42626425649. The reversal of 42626425646 is 64652462624.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 42626425646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42626425649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81275 + ... + 303081.

It is an arithmetic number, because the mean of its divisors is an integer number (1621471932).

Almost surely, 2^42626425646 is an apocalyptic number.

42626425646 is a deficient number, since it is larger than the sum of its proper divisors (35204227090).

42626425646 is a wasteful number, since it uses less digits than its factorization.

42626425646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221913 (or 221906 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 47.

The spelling of 42626425646 in words is "forty-two billion, six hundred twenty-six million, four hundred twenty-five thousand, six hundred forty-six".