42342579820 has 48 divisors (see below), whose sum is σ = 90184711680. Its totient is φ = 16696267776.

The previous prime is 42342579781. The next prime is 42342579821. The reversal of 42342579820 is 2897524324.

It is not an unprimeable number, because it can be changed into a prime (42342579821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3262464 + ... + 3275416.

It is an arithmetic number, because the mean of its divisors is an integer number (1878848160).

Almost surely, 2^42342579820 is an apocalyptic number.

It is an amenable number.

42342579820 is an abundant number, since it is smaller than the sum of its proper divisors (47842131860).

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

42342579820 is a wasteful number, since it uses less digits than its factorization.

42342579820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15274 (or 15272 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 42342579820 in words is "forty-two billion, three hundred forty-two million, five hundred seventy-nine thousand, eight hundred twenty".