422398769120640 has 256 divisors, whose sum is σ = 1611072229233600. Its totient is φ = 103975081574400.

The previous prime is 422398769120543. The next prime is 422398769120651. The reversal of 422398769120640 is 46021967893224.

422398769120640 is a `hidden beast` number, since 4 + 2 + 2 + 398 + 7 + 69 + 120 + 64 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 939943561 + ... + 940392840.

Almost surely, 2^{422398769120640} is an apocalyptic number.

422398769120640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422398769120640 is an abundant number, since it is smaller than the sum of its proper divisors (1188673460112960).

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

422398769120640 is a wasteful number, since it uses less digits than its factorization.

422398769120640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880336442 (or 1880336424 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 63.

The spelling of 422398769120640 in words is "four hundred twenty-two trillion, three hundred ninety-eight billion, seven hundred sixty-nine million, one hundred twenty thousand, six hundred forty".