612622245444 has 144 divisors (see below), whose sum is σ = 1670969227200. Its totient is φ = 174058536960.

The previous prime is 612622245439. The next prime is 612622245449. The reversal of 612622245444 is 444542226216.

It is an interprime number because it is at equal distance from previous prime (612622245439) and next prime (612622245449).

It is a super-2 number, since 2×612622245444² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 612622245396 and 612622245405.

It is not an unprimeable number, because it can be changed into a prime (612622245449) 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 47 ways as a sum of consecutive naturals, for example, 2561572 + ... + 2790500.

Almost surely, 2^612622245444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612622245444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835484613600).

612622245444 is an abundant number, since it is smaller than the sum of its proper divisors (1058346981756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612622245444 is a wasteful number, since it uses less digits than its factorization.

612622245444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229074 (or 229061 counting only the distinct ones).

The product of its digits is 737280, while the sum is 42.

The spelling of 612622245444 in words is "six hundred twelve billion, six hundred twenty-two million, two hundred forty-five thousand, four hundred forty-four".