42581619976 has 128 divisors (see below), whose sum is σ = 96034118400. Its totient is φ = 17322439680.

The previous prime is 42581619961. The next prime is 42581619991. The reversal of 42581619976 is 67991618524.

42581619976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42581619961) and next prime (42581619991).

It is a self number, because there is not a number n which added to its sum of digits gives 42581619976.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13909486 + ... + 13912546.

It is an arithmetic number, because the mean of its divisors is an integer number (750266550).

Almost surely, 2^42581619976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42581619976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48017059200).

42581619976 is an abundant number, since it is smaller than the sum of its proper divisors (53452498424).

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

42581619976 is a wasteful number, since it uses less digits than its factorization.

42581619976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3279 (or 3275 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 58.

The spelling of 42581619976 in words is "forty-two billion, five hundred eighty-one million, six hundred nineteen thousand, nine hundred seventy-six".