673910738560 has 128 divisors (see below), whose sum is σ = 1699506619200. Its totient is φ = 254827708416.

The previous prime is 673910738549. The next prime is 673910738563. The reversal of 673910738560 is 65837019376.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (673910738563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5619384 + ... + 5738056.

Almost surely, 2^673910738560 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 673910738560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849753309600).

673910738560 is an abundant number, since it is smaller than the sum of its proper divisors (1025595880640).

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

673910738560 is a wasteful number, since it uses less digits than its factorization.

673910738560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119178 (or 119166 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 673910738560 in words is "six hundred seventy-three billion, nine hundred ten million, seven hundred thirty-eight thousand, five hundred sixty".