42545742660 has 36 divisors (see below), whose sum is σ = 129055419948. Its totient is φ = 11345531328.

The previous prime is 42545742643. The next prime is 42545742683. The reversal of 42545742660 is 6624754524.

42545742660 is a `hidden beast` number, since 4 + 2 + 54 + 574 + 26 + 6 + 0 = 666.

42545742660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 20167976196 + 22377766464 = 142014^2 + 149592^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118182439 + ... + 118182798.

Almost surely, 2^42545742660 is an apocalyptic number.

It is an amenable number.

42545742660 is an abundant number, since it is smaller than the sum of its proper divisors (86509677288).

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

42545742660 is a wasteful number, since it uses less digits than its factorization.

42545742660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236365252 (or 236365247 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 42545742660 in words is "forty-two billion, five hundred forty-five million, seven hundred forty-two thousand, six hundred sixty".