42771121902 has 20 divisors (see below), whose sum is σ = 95838995736. Its totient is φ = 14257040580.

The previous prime is 42771121889. The next prime is 42771121963. The reversal of 42771121902 is 20912117724.

42771121902 is a `hidden beast` number, since 427 + 7 + 11 + 219 + 0 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 132009474 + ... + 132009797.

Almost surely, 2^42771121902 is an apocalyptic number.

42771121902 is an abundant number, since it is smaller than the sum of its proper divisors (53067873834).

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

42771121902 is a wasteful number, since it uses less digits than its factorization.

42771121902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264019285 (or 264019276 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The spelling of 42771121902 in words is "forty-two billion, seven hundred seventy-one million, one hundred twenty-one thousand, nine hundred two".