676985831424 has 576 divisors, whose sum is σ = 2371627112400. Its totient is φ = 190253629440.

The previous prime is 676985831359. The next prime is 676985831461. The reversal of 676985831424 is 424138589676.

676985831424 is a `hidden beast` number, since 6 + 7 + 6 + 9 + 8 + 583 + 1 + 42 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11098128354 + ... + 11098128414.

Almost surely, 2^676985831424 is an apocalyptic number.

676985831424 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 676985831424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1185813556200).

676985831424 is an abundant number, since it is smaller than the sum of its proper divisors (1694641280976).

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

676985831424 is an frugal number, since it uses more digits than its factorization.

676985831424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 73 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 676985831424 in words is "six hundred seventy-six billion, nine hundred eighty-five million, eight hundred thirty-one thousand, four hundred twenty-four".