672455999424 has 448 divisors, whose sum is σ = 2000137784832. Its totient is φ = 197699174400.

The previous prime is 672455999393. The next prime is 672455999431. The reversal of 672455999424 is 424999554276.

It is a super-2 number, since 2×672455999424² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4283159154 + ... + 4283159310.

Almost surely, 2^672455999424 is an apocalyptic number.

672455999424 is a gapful number since it is divisible by the number (64) 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 672455999424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000068892416).

672455999424 is an abundant number, since it is smaller than the sum of its proper divisors (1327681785408).

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

672455999424 is a wasteful number, since it uses less digits than its factorization.

672455999424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 554 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 66.

The spelling of 672455999424 in words is "six hundred seventy-two billion, four hundred fifty-five million, nine hundred ninety-nine thousand, four hundred twenty-four".