422487174986640 has 960 divisors, whose sum is σ = 1603791850752000. Its totient is φ = 99040350191616.

The previous prime is 422487174986609. The next prime is 422487174986651. The reversal of 422487174986640 is 46689471784224.

422487174986640 is a `hidden beast` number, since 4 + 2 + 2 + 4 + 8 + 71 + 7 + 498 + 6 + 64 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5437446511 + ... + 5437524209.

It is an arithmetic number, because the mean of its divisors is an integer number (1670616511200).

Almost surely, 2^{422487174986640} is an apocalyptic number.

422487174986640 is a gapful number since it is divisible by the number (40) 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 422487174986640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801895925376000).

422487174986640 is an abundant number, since it is smaller than the sum of its proper divisors (1181304675765360).

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

422487174986640 is a wasteful number, since it uses less digits than its factorization.

422487174986640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78084 (or 78075 counting only the distinct ones).

The product of its (nonzero) digits is 1040449536, while the sum is 72.

The spelling of 422487174986640 in words is "four hundred twenty-two trillion, four hundred eighty-seven billion, one hundred seventy-four million, nine hundred eighty-six thousand, six hundred forty".