674179521624 has 512 divisors, whose sum is σ = 2285107200000. Its totient is φ = 180084695040.

The previous prime is 674179521607. The next prime is 674179521667. The reversal of 674179521624 is 426125971476.

674179521624 is a `hidden beast` number, since 6 + 7 + 4 + 1 + 7 + 9 + 5 + 2 + 1 + 624 = 666.

674179521624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 258404032 + ... + 258406640.

It is an arithmetic number, because the mean of its divisors is an integer number (4463100000).

Almost surely, 2^674179521624 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 674179521624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1142553600000).

674179521624 is an abundant number, since it is smaller than the sum of its proper divisors (1610927678376).

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

674179521624 is a wasteful number, since it uses less digits than its factorization.

674179521624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848 (or 2838 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 674179521624 in words is "six hundred seventy-four billion, one hundred seventy-nine million, five hundred twenty-one thousand, six hundred twenty-four".