42074040881 has 4 divisors (see below), whose sum is σ = 43052506992. Its totient is φ = 41095574772.

The previous prime is 42074040871. The next prime is 42074040887. The reversal of 42074040881 is 18804047024.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42074040881 - 2⁶ = 42074040817 is a prime.

It is a super-2 number, since 2×42074040881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42074040887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489232991 + ... + 489233076.

It is an arithmetic number, because the mean of its divisors is an integer number (10763126748).

Almost surely, 2^42074040881 is an apocalyptic number.

It is an amenable number.

42074040881 is a deficient number, since it is larger than the sum of its proper divisors (978466111).

42074040881 is an equidigital number, since it uses as much as digits as its factorization.

42074040881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978466110.

The product of its (nonzero) digits is 57344, while the sum is 38.

The spelling of 42074040881 in words is "forty-two billion, seventy-four million, forty thousand, eight hundred eighty-one".