42561764352 has 66 divisors (see below), whose sum is σ = 122896197528. Its totient is φ = 14187251712.

The previous prime is 42561764317. The next prime is 42561764389. The reversal of 42561764352 is 25346716524.

42561764352 is a `hidden beast` number, since 4 + 25 + 617 + 6 + 4 + 3 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 42561764298 and 42561764307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2299908 + ... + 2318339.

Almost surely, 2^42561764352 is an apocalyptic number.

It is an amenable number.

42561764352 is an abundant number, since it is smaller than the sum of its proper divisors (80334433176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42561764352 is a wasteful number, since it uses less digits than its factorization.

42561764352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618273 (or 4618252 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The spelling of 42561764352 in words is "forty-two billion, five hundred sixty-one million, seven hundred sixty-four thousand, three hundred fifty-two".