42561633215 has 32 divisors (see below), whose sum is σ = 52636953600. Its totient is φ = 33018036480.

The previous prime is 42561633197. The next prime is 42561633217. The reversal of 42561633215 is 51233616524.

It is not a de Polignac number, because 42561633215 - 2⁸ = 42561632959 is a prime.

It is a super-2 number, since 2×42561633215² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42561633217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46312526 + ... + 46313444.

It is an arithmetic number, because the mean of its divisors is an integer number (1644904800).

Almost surely, 2^42561633215 is an apocalyptic number.

42561633215 is a deficient number, since it is larger than the sum of its proper divisors (10075320385).

42561633215 is a wasteful number, since it uses less digits than its factorization.

42561633215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087.

The product of its digits is 129600, while the sum is 38.

The spelling of 42561633215 in words is "forty-two billion, five hundred sixty-one million, six hundred thirty-three thousand, two hundred fifteen".