622905260189 has 4 divisors (see below), whose sum is σ = 624100856220. Its totient is φ = 621709664160.

The previous prime is 622905260179. The next prime is 622905260207. The reversal of 622905260189 is 981062509226.

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 177542564164 + 445362696025 = 421358^2 + 667355^2 .

It is a cyclic number.

It is not a de Polignac number, because 622905260189 - 2¹² = 622905256093 is a prime.

It is a super-2 number, since 2×622905260189² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622905260119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597797234 + ... + 597798275.

It is an arithmetic number, because the mean of its divisors is an integer number (156025214055).

Almost surely, 2^622905260189 is an apocalyptic number.

It is an amenable number.

622905260189 is a deficient number, since it is larger than the sum of its proper divisors (1195596031).

622905260189 is a wasteful number, since it uses less digits than its factorization.

622905260189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195596030.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 622905260189 in words is "six hundred twenty-two billion, nine hundred five million, two hundred sixty thousand, one hundred eighty-nine".