423197554824 has 256 divisors, whose sum is σ = 1374347520000. Its totient is φ = 119350091520.

The previous prime is 423197554789. The next prime is 423197554831. The reversal of 423197554824 is 428455791324.

It is a happy number.

423197554824 is a `hidden beast` number, since 4 + 2 + 3 + 1 + 9 + 7 + 554 + 82 + 4 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1917327 + ... + 2126625.

It is an arithmetic number, because the mean of its divisors is an integer number (5368545000).

Almost surely, 2^423197554824 is an apocalyptic number.

423197554824 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 423197554824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687173760000).

423197554824 is an abundant number, since it is smaller than the sum of its proper divisors (951149965176).

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

423197554824 is a wasteful number, since it uses less digits than its factorization.

423197554824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209385 (or 209375 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The spelling of 423197554824 in words is "four hundred twenty-three billion, one hundred ninety-seven million, five hundred fifty-four thousand, eight hundred twenty-four".