42656602063 has 4 divisors (see below), whose sum is σ = 42659894080. Its totient is φ = 42653310048.

The previous prime is 42656602049. The next prime is 42656602067. The reversal of 42656602063 is 36020665624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42656602063 - 2³³ = 34066667471 is a prime.

It is a super-2 number, since 2×42656602063² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42656602067) 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, 1626495 + ... + 1652512.

It is an arithmetic number, because the mean of its divisors is an integer number (10664973520).

Almost surely, 2^42656602063 is an apocalyptic number.

42656602063 is a deficient number, since it is larger than the sum of its proper divisors (3292017).

42656602063 is a wasteful number, since it uses less digits than its factorization.

42656602063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3292016.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 42656602063 in words is "forty-two billion, six hundred fifty-six million, six hundred two thousand, sixty-three".