42147727720 has 128 divisors (see below), whose sum is σ = 112964567040. Its totient is φ = 13848433920.

The previous prime is 42147727703. The next prime is 42147727793. The reversal of 42147727720 is 2772774124.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 870469 + ... + 917611.

It is an arithmetic number, because the mean of its divisors is an integer number (882535680).

Almost surely, 2^42147727720 is an apocalyptic number.

42147727720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42147727720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56482283520).

42147727720 is an abundant number, since it is smaller than the sum of its proper divisors (70816839320).

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

42147727720 is a wasteful number, since it uses less digits than its factorization.

42147727720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47295 (or 47291 counting only the distinct ones).

The product of its (nonzero) digits is 307328, while the sum is 43.

The spelling of 42147727720 in words is "forty-two billion, one hundred forty-seven million, seven hundred twenty-seven thousand, seven hundred twenty".