42365444820 has 24 divisors (see below), whose sum is σ = 118623245664. Its totient is φ = 11297451936.

The previous prime is 42365444819. The next prime is 42365444831. The reversal of 42365444820 is 2844456324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353045314 + ... + 353045433.

It is an arithmetic number, because the mean of its divisors is an integer number (4942635236).

Almost surely, 2^42365444820 is an apocalyptic number.

It is an amenable number.

42365444820 is an abundant number, since it is smaller than the sum of its proper divisors (76257800844).

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

42365444820 is a wasteful number, since it uses less digits than its factorization.

42365444820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706090759 (or 706090757 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 42.

The spelling of 42365444820 in words is "forty-two billion, three hundred sixty-five million, four hundred forty-four thousand, eight hundred twenty".