42681542399 has 8 divisors (see below), whose sum is σ = 43606909440. Its totient is φ = 41765383296.

The previous prime is 42681542369. The next prime is 42681542417. The reversal of 42681542399 is 99324518624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42681542399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42681542399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42681542329) 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, 2292614 + ... + 2311155.

It is an arithmetic number, because the mean of its divisors is an integer number (5450863680).

Almost surely, 2^42681542399 is an apocalyptic number.

42681542399 is a deficient number, since it is larger than the sum of its proper divisors (925367041).

42681542399 is a wasteful number, since it uses less digits than its factorization.

42681542399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603969.

The product of its digits is 3732480, while the sum is 53.

The spelling of 42681542399 in words is "forty-two billion, six hundred eighty-one million, five hundred forty-two thousand, three hundred ninety-nine".