42771707772 has 12 divisors (see below), whose sum is σ = 99800651496. Its totient is φ = 14257235920.

The previous prime is 42771707707. The next prime is 42771707807. The reversal of 42771707772 is 27770717724.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1782154479 + ... + 1782154502.

It is an arithmetic number, because the mean of its divisors is an integer number (8316720958).

Almost surely, 2^42771707772 is an apocalyptic number.

It is an amenable number.

42771707772 is an abundant number, since it is smaller than the sum of its proper divisors (57028943724).

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

42771707772 is a wasteful number, since it uses less digits than its factorization.

42771707772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564308988 (or 3564308986 counting only the distinct ones).

The product of its (nonzero) digits is 1882384, while the sum is 51.

The spelling of 42771707772 in words is "forty-two billion, seven hundred seventy-one million, seven hundred seven thousand, seven hundred seventy-two".