42847421164420 has 24 divisors (see below), whose sum is σ = 90072634728384. Its totient is φ = 17121244602336.

The previous prime is 42847421164369. The next prime is 42847421164421. The reversal of 42847421164420 is 2446112474824.

It is not an unprimeable number, because it can be changed into a prime (42847421164421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107721642 + ... + 1107760321.

It is an arithmetic number, because the mean of its divisors is an integer number (3753026447016).

Almost surely, 2^{42847421164420} is an apocalyptic number.

It is an amenable number.

42847421164420 is an abundant number, since it is smaller than the sum of its proper divisors (47225213563964).

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

42847421164420 is a wasteful number, since it uses less digits than its factorization.

42847421164420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215482939 (or 2215482937 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 49.

The spelling of 42847421164420 in words is "forty-two trillion, eight hundred forty-seven billion, four hundred twenty-one million, one hundred sixty-four thousand, four hundred twenty".