674481563712 has 448 divisors, whose sum is σ = 2191417390080. Its totient is φ = 201729024000.

The previous prime is 674481563689. The next prime is 674481563747. The reversal of 674481563712 is 217365184476.

674481563712 is a `hidden beast` number, since 6 + 7 + 4 + 4 + 8 + 1 + 563 + 71 + 2 = 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 (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 815575843 + ... + 815576669.

Almost surely, 2^674481563712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674481563712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095708695040).

674481563712 is an abundant number, since it is smaller than the sum of its proper divisors (1516935826368).

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

674481563712 is a wasteful number, since it uses less digits than its factorization.

674481563712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367 (or 1351 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 674481563712 in words is "six hundred seventy-four billion, four hundred eighty-one million, five hundred sixty-three thousand, seven hundred twelve".