42354800881 has 2 divisors, whose sum is σ = 42354800882. Its totient is φ = 42354800880.

The previous prime is 42354800849. The next prime is 42354800923. The reversal of 42354800881 is 18800845324.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31493826225 + 10860974656 = 177465^2 + 104216^2 .

It is a cyclic number.

It is not a de Polignac number, because 42354800881 - 2⁵ = 42354800849 is a prime.

It is a super-2 number, since 2×42354800881² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42354800581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21177400440 + 21177400441.

It is an arithmetic number, because the mean of its divisors is an integer number (21177400441).

Almost surely, 2^42354800881 is an apocalyptic number.

It is an amenable number.

42354800881 is a deficient number, since it is larger than the sum of its proper divisors (1).

42354800881 is an equidigital number, since it uses as much as digits as its factorization.

42354800881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 245760, while the sum is 43.

The spelling of 42354800881 in words is "forty-two billion, three hundred fifty-four million, eight hundred thousand, eight hundred eighty-one".