422997115464 has 512 divisors, whose sum is σ = 1514106777600. Its totient is φ = 106218915840.

The previous prime is 422997115423. The next prime is 422997115511. The reversal of 422997115464 is 464511799224.

422997115464 is a `hidden beast` number, since 4 + 2 + 2 + 9 + 97 + 1 + 1 + 546 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 422997115464.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 100305484 + ... + 100309700.

It is an arithmetic number, because the mean of its divisors is an integer number (2957239800).

Almost surely, 2^422997115464 is an apocalyptic number.

422997115464 is a gapful number since it is divisible by the number (44) 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 422997115464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (757053388800).

422997115464 is an abundant number, since it is smaller than the sum of its proper divisors (1091109662136).

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

422997115464 is a wasteful number, since it uses less digits than its factorization.

422997115464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450 (or 4440 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 422997115464 in words is "four hundred twenty-two billion, nine hundred ninety-seven million, one hundred fifteen thousand, four hundred sixty-four".