42581455340 has 24 divisors (see below), whose sum is σ = 89937948240. Its totient is φ = 16934126528.

The previous prime is 42581455339. The next prime is 42581455349. The reversal of 42581455340 is 4355418524.

It is not an unprimeable number, because it can be changed into a prime (42581455349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6149930 + ... + 6156849.

It is an arithmetic number, because the mean of its divisors is an integer number (3747414510).

Almost surely, 2^42581455340 is an apocalyptic number.

It is an amenable number.

42581455340 is an abundant number, since it is smaller than the sum of its proper divisors (47356492900).

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

42581455340 is a wasteful number, since it uses less digits than its factorization.

42581455340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12306961 (or 12306959 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 41.

The spelling of 42581455340 in words is "forty-two billion, five hundred eighty-one million, four hundred fifty-five thousand, three hundred forty".