674865489408 has 320 divisors, whose sum is σ = 2013531125760. Its totient is φ = 199083622400.

The previous prime is 674865489313. The next prime is 674865489433. The reversal of 674865489408 is 804984568476.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468981553 + ... + 468982991.

It is an arithmetic number, because the mean of its divisors is an integer number (6292284768).

Almost surely, 2^674865489408 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 674865489408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006765562880).

674865489408 is an abundant number, since it is smaller than the sum of its proper divisors (1338665636352).

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

674865489408 is a wasteful number, since it uses less digits than its factorization.

674865489408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189 (or 2173 counting only the distinct ones).

The product of its (nonzero) digits is 371589120, while the sum is 69.

The spelling of 674865489408 in words is "six hundred seventy-four billion, eight hundred sixty-five million, four hundred eighty-nine thousand, four hundred eight".