422061994368 has 384 divisors, whose sum is σ = 1437493262400. Its totient is φ = 116367114240.

The previous prime is 422061994349. The next prime is 422061994369. The reversal of 422061994368 is 863499160224.

422061994368 is a `hidden beast` number, since 42 + 20 + 61 + 99 + 436 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422061994369) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26062818 + ... + 26079006.

Almost surely, 2^422061994368 is an apocalyptic number.

422061994368 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422061994368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718746631200).

422061994368 is an abundant number, since it is smaller than the sum of its proper divisors (1015431268032).

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

422061994368 is a wasteful number, since it uses less digits than its factorization.

422061994368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16330 (or 16315 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 422061994368 in words is "four hundred twenty-two billion, sixty-one million, nine hundred ninety-four thousand, three hundred sixty-eight".