42881455229 has 4 divisors (see below), whose sum is σ = 42882081084. Its totient is φ = 42880829376.

The previous prime is 42881455223. The next prime is 42881455241. The reversal of 42881455229 is 92255418824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9082471204 + 33798984025 = 95302^2 + 183845^2 .

It is a cyclic number.

It is not a de Polignac number, because 42881455229 - 2¹² = 42881451133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42881455223) 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, 195452 + ... + 352085.

It is an arithmetic number, because the mean of its divisors is an integer number (10720520271).

Almost surely, 2^42881455229 is an apocalyptic number.

It is an amenable number.

42881455229 is a deficient number, since it is larger than the sum of its proper divisors (625855).

42881455229 is an equidigital number, since it uses as much as digits as its factorization.

42881455229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625854.

The product of its digits is 1843200, while the sum is 50.

The spelling of 42881455229 in words is "forty-two billion, eight hundred eighty-one million, four hundred fifty-five thousand, two hundred twenty-nine".