673423749376 has 243 divisors, whose sum is σ = 1664935757877. Its totient is φ = 271002869760.

The previous prime is 673423749331. The next prime is 673423749403. The reversal of 673423749376 is 673947324376.

The square root of 673423749376 is 820624.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 524291846400 + 149131902976 = 724080^2 + 386176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1562467881 + ... + 1562468311.

Almost surely, 2^673423749376 is an apocalyptic number.

673423749376 is the 820624-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673423749376

673423749376 is an abundant number, since it is smaller than the sum of its proper divisors (991512008501).

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

673423749376 is an frugal number, since it uses more digits than its factorization.

673423749376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926 (or 457 counting only the distinct ones).

The product of its digits is 96018048, while the sum is 61.

The spelling of 673423749376 in words is "six hundred seventy-three billion, four hundred twenty-three million, seven hundred forty-nine thousand, three hundred seventy-six".