673397314560 has 704 divisors, whose sum is σ = 2443508812800. Its totient is φ = 175835971584.

The previous prime is 673397314517. The next prime is 673397314571. The reversal of 673397314560 is 65413793376.

It is a happy number.

673397314560 is a `hidden beast` number, since 6 + 7 + 3 + 3 + 9 + 73 + 1 + 4 + 560 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 673397314497 and 673397314506.

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, 2151428964 + ... + 2151429276.

It is an arithmetic number, because the mean of its divisors is an integer number (3470893200).

Almost surely, 2^673397314560 is an apocalyptic number.

673397314560 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 673397314560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221754406400).

673397314560 is an abundant number, since it is smaller than the sum of its proper divisors (1770111498240).

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

673397314560 is a wasteful number, since it uses less digits than its factorization.

673397314560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 54.

The spelling of 673397314560 in words is "six hundred seventy-three billion, three hundred ninety-seven million, three hundred fourteen thousand, five hundred sixty".