42437664838 has 8 divisors (see below), whose sum is σ = 64078063920. Its totient is φ = 21078310200.

The previous prime is 42437664823. The next prime is 42437664839. The reversal of 42437664838 is 83846673424.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42437664839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70260733 + ... + 70261336.

It is an arithmetic number, because the mean of its divisors is an integer number (8009757990).

Almost surely, 2^42437664838 is an apocalyptic number.

42437664838 is a deficient number, since it is larger than the sum of its proper divisors (21640399082).

42437664838 is a wasteful number, since it uses less digits than its factorization.

42437664838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140522222.

The product of its digits is 18579456, while the sum is 55.

The spelling of 42437664838 in words is "forty-two billion, four hundred thirty-seven million, six hundred sixty-four thousand, eight hundred thirty-eight".