674759981280 has 384 divisors, whose sum is σ = 2661089034240. Its totient is φ = 139621386240.

The previous prime is 674759981267. The next prime is 674759981303. The reversal of 674759981280 is 82189957476.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8795247 + ... + 8871633.

It is an arithmetic number, because the mean of its divisors is an integer number (6929919360).

Almost surely, 2^674759981280 is an apocalyptic number.

674759981280 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 674759981280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330544517120).

674759981280 is an abundant number, since it is smaller than the sum of its proper divisors (1986329052960).

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

674759981280 is a wasteful number, since it uses less digits than its factorization.

674759981280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76662 (or 76654 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 66.

The spelling of 674759981280 in words is "six hundred seventy-four billion, seven hundred fifty-nine million, nine hundred eighty-one thousand, two hundred eighty".