42881000491 has 12 divisors (see below), whose sum is σ = 49892049840. Its totient is φ = 36747723600.

The previous prime is 42881000369. The next prime is 42881000509. The reversal of 42881000491 is 19400018824.

It is not a de Polignac number, because 42881000491 - 2⁹ = 42880999979 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 42881000491.

It is not an unprimeable number, because it can be changed into a prime (42881000791) 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 11 ways as a sum of consecutive naturals, for example, 164170 + ... + 335728.

It is an arithmetic number, because the mean of its divisors is an integer number (4157670820).

Almost surely, 2^42881000491 is an apocalyptic number.

42881000491 is a deficient number, since it is larger than the sum of its proper divisors (7011049349).

42881000491 is a wasteful number, since it uses less digits than its factorization.

42881000491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176674 (or 176667 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The spelling of 42881000491 in words is "forty-two billion, eight hundred eighty-one million, four hundred ninety-one", and thus it is an aban number.