422951636450 has 90 divisors (see below), whose sum is σ = 918239648451. Its totient is φ = 144934732320.

The previous prime is 422951636399. The next prime is 422951636477. The reversal of 422951636450 is 54636159224.

It can be written as a sum of positive squares in 5 ways, for example, as 205302328609 + 217649307841 = 453103^2 + 466529^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=459865.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422951636395 and 422951636404.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 225332912 + ... + 225334788.

Almost surely, 2^422951636450 is an apocalyptic number.

422951636450 is an abundant number, since it is smaller than the sum of its proper divisors (495288012001).

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

422951636450 is an frugal number, since it uses more digits than its factorization.

422951636450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 422951636450 in words is "four hundred twenty-two billion, nine hundred fifty-one million, six hundred thirty-six thousand, four hundred fifty".