674650775520 has 672 divisors, whose sum is σ = 2447590400640. Its totient is φ = 175601986560.

The previous prime is 674650775509. The next prime is 674650775521. The reversal of 674650775520 is 25577056476.

674650775520 is a `hidden beast` number, since 6 + 7 + 46 + 5 + 0 + 7 + 75 + 520 = 666.

674650775520 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 not an unprimeable number, because it can be changed into a prime (674650775521) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1023748951 + ... + 1023749609.

It is an arithmetic number, because the mean of its divisors is an integer number (3642247620).

Almost surely, 2^674650775520 is an apocalyptic number.

674650775520 is a gapful number since it is divisible by the number (60) 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 674650775520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223795200320).

674650775520 is an abundant number, since it is smaller than the sum of its proper divisors (1772939625120).

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

674650775520 is a wasteful number, since it uses less digits than its factorization.

674650775520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 12348000, while the sum is 54.

The spelling of 674650775520 in words is "six hundred seventy-four billion, six hundred fifty million, seven hundred seventy-five thousand, five hundred twenty".