42820433772 has 24 divisors (see below), whose sum is σ = 99937847856. Its totient is φ = 14270120448.

The previous prime is 42820433767. The next prime is 42820433797. The reversal of 42820433772 is 27733402824.

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, 366273 + ... + 468824.

It is an arithmetic number, because the mean of its divisors is an integer number (4164076994).

Almost surely, 2^42820433772 is an apocalyptic number.

It is an amenable number.

42820433772 is an abundant number, since it is smaller than the sum of its proper divisors (57117414084).

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

42820433772 is a wasteful number, since it uses less digits than its factorization.

42820433772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839377 (or 839375 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 42.

The spelling of 42820433772 in words is "forty-two billion, eight hundred twenty million, four hundred thirty-three thousand, seven hundred seventy-two".