422544085650 has 288 divisors, whose sum is σ = 1264133340288. Its totient is φ = 104552985600.

The previous prime is 422544085643. The next prime is 422544085679. The reversal of 422544085650 is 56580445224.

422544085650 is a `hidden beast` number, since 4 + 2 + 2 + 544 + 0 + 8 + 56 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 422544085596 and 422544085605.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 14650644 + ... + 14679456.

It is an arithmetic number, because the mean of its divisors is an integer number (4389351876).

Almost surely, 2^422544085650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422544085650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632066670144).

422544085650 is an abundant number, since it is smaller than the sum of its proper divisors (841589254638).

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

422544085650 is a wasteful number, since it uses less digits than its factorization.

422544085650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28928 (or 28911 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 45.

The spelling of 422544085650 in words is "four hundred twenty-two billion, five hundred forty-four million, eighty-five thousand, six hundred fifty".