622440561129 has 16 divisors (see below), whose sum is σ = 834305744448. Its totient is φ = 412768746432.

The previous prime is 622440561103. The next prime is 622440561167. The reversal of 622440561129 is 921165044226.

622440561129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 622440561129 - 2¹² = 622440557033 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (622440561529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2823354 + ... + 3035820.

It is an arithmetic number, because the mean of its divisors is an integer number (52144109028).

Almost surely, 2^622440561129 is an apocalyptic number.

It is an amenable number.

622440561129 is a deficient number, since it is larger than the sum of its proper divisors (211865183319).

622440561129 is a wasteful number, since it uses less digits than its factorization.

622440561129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217624.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 622440561129 in words is "six hundred twenty-two billion, four hundred forty million, five hundred sixty-one thousand, one hundred twenty-nine".