42771856422 has 16 divisors (see below), whose sum is σ = 90046013760. Its totient is φ = 13506901992.

The previous prime is 42771856409. The next prime is 42771856447. The reversal of 42771856422 is 22465817724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187595748 + ... + 187595975.

It is an arithmetic number, because the mean of its divisors is an integer number (5627875860).

Almost surely, 2^42771856422 is an apocalyptic number.

42771856422 is an abundant number, since it is smaller than the sum of its proper divisors (47274157338).

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

42771856422 is a wasteful number, since it uses less digits than its factorization.

42771856422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375191747.

The product of its digits is 1505280, while the sum is 48.

The spelling of 42771856422 in words is "forty-two billion, seven hundred seventy-one million, eight hundred fifty-six thousand, four hundred twenty-two".