42561884578510 has 64 divisors (see below), whose sum is σ = 83818916121600. Its totient is φ = 15432120576000.

The previous prime is 42561884578483. The next prime is 42561884578511. The reversal of 42561884578510 is 1587548816524.

42561884578510 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42561884578511) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 77037031 + ... + 77587549.

It is an arithmetic number, because the mean of its divisors is an integer number (1309670564400).

Almost surely, 2^{42561884578510} is an apocalyptic number.

42561884578510 is a deficient number, since it is larger than the sum of its proper divisors (41257031543090).

42561884578510 is a wasteful number, since it uses less digits than its factorization.

42561884578510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552577.

The product of its (nonzero) digits is 86016000, while the sum is 64.

The spelling of 42561884578510 in words is "forty-two trillion, five hundred sixty-one billion, eight hundred eighty-four million, five hundred seventy-eight thousand, five hundred ten".