673384374648 has 128 divisors (see below), whose sum is σ = 1921466764800. Its totient is φ = 218387570688.

The previous prime is 673384374629. The next prime is 673384374659. The reversal of 673384374648 is 846473483376.

673384374648 is a `hidden beast` number, since 67 + 3 + 3 + 84 + 37 + 464 + 8 = 666.

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, 2245965 + ... + 2528067.

It is an arithmetic number, because the mean of its divisors is an integer number (15011459100).

Almost surely, 2^673384374648 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 673384374648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960733382400).

673384374648 is an abundant number, since it is smaller than the sum of its proper divisors (1248082390152).

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

673384374648 is a wasteful number, since it uses less digits than its factorization.

673384374648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282418 (or 282408 counting only the distinct ones).

The product of its digits is 195084288, while the sum is 63.

The spelling of 673384374648 in words is "six hundred seventy-three billion, three hundred eighty-four million, three hundred seventy-four thousand, six hundred forty-eight".