42420089990 has 8 divisors (see below), whose sum is σ = 76356162000. Its totient is φ = 16968035992.

The previous prime is 42420089939. The next prime is 42420090001. The reversal of 42420089990 is 9998002424.

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

It is a congruent number.

It is an unprimeable number.

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, 2121004490 + ... + 2121004509.

It is an arithmetic number, because the mean of its divisors is an integer number (9544520250).

Almost surely, 2^42420089990 is an apocalyptic number.

42420089990 is a deficient number, since it is larger than the sum of its proper divisors (33936072010).

42420089990 is a wasteful number, since it uses less digits than its factorization.

42420089990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242009006.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 42420089990 in words is "forty-two billion, four hundred twenty million, eighty-nine thousand, nine hundred ninety".