42205457772 has 36 divisors (see below), whose sum is σ = 106773792216. Its totient is φ = 14056911360.

The previous prime is 42205457759. The next prime is 42205457773. The reversal of 42205457772 is 27775450224.

42205457772 is a `hidden beast` number, since 4 + 2 + 2 + 0 + 5 + 4 + 577 + 72 = 666.

42205457772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (42205457773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437854 + ... + 525477.

Almost surely, 2^42205457772 is an apocalyptic number.

It is an amenable number.

42205457772 is an abundant number, since it is smaller than the sum of its proper divisors (64568334444).

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

42205457772 is a wasteful number, since it uses less digits than its factorization.

42205457772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964558 (or 964553 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 45.

The spelling of 42205457772 in words is "forty-two billion, two hundred five million, four hundred fifty-seven thousand, seven hundred seventy-two".