42939519490 has 128 divisors (see below), whose sum is σ = 100156538880. Its totient is φ = 12910233600.

The previous prime is 42939519463. The next prime is 42939519499. The reversal of 42939519490 is 9491593924.

It is not an unprimeable number, because it can be changed into a prime (42939519499) 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 63 ways as a sum of consecutive naturals, for example, 925650 + ... + 970930.

It is an arithmetic number, because the mean of its divisors is an integer number (782472960).

Almost surely, 2^42939519490 is an apocalyptic number.

42939519490 is an abundant number, since it is smaller than the sum of its proper divisors (57217019390).

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

42939519490 is a wasteful number, since it uses less digits than its factorization.

42939519490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45368.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The spelling of 42939519490 in words is "forty-two billion, nine hundred thirty-nine million, five hundred nineteen thousand, four hundred ninety".