42039799824 has 160 divisors (see below), whose sum is σ = 119491780608. Its totient is φ = 12630592000.

The previous prime is 42039799819. The next prime is 42039799829. The reversal of 42039799824 is 42899793024.

It is an interprime number because it is at equal distance from previous prime (42039799819) and next prime (42039799829).

It is not an unprimeable number, because it can be changed into a prime (42039799829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44675194 + ... + 44676134.

Almost surely, 2^42039799824 is an apocalyptic number.

42039799824 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42039799824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59745890304).

42039799824 is an abundant number, since it is smaller than the sum of its proper divisors (77451980784).

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

42039799824 is a wasteful number, since it uses less digits than its factorization.

42039799824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597 (or 1591 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 42039799824 in words is "forty-two billion, thirty-nine million, seven hundred ninety-nine thousand, eight hundred twenty-four".