673446727044 has 567 divisors, whose sum is σ = 2239161300117. Its totient is φ = 176548776768.

The previous prime is 673446727003. The next prime is 673446727073. The reversal of 673446727044 is 440727644376.

The square root of 673446727044 is 820638.

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

673446727044 is a `hidden beast` number, since 6 + 73 + 4 + 467 + 2 + 70 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 99622296900 + 573824430144 = 315630^2 + 757512^2 .

It is a tau number, because it is divible by the number of its divisors (567).

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

It is an unprimeable number.

It is a polite number, since it can be written in 188 ways as a sum of consecutive naturals, for example, 4032615049 + ... + 4032615215.

Almost surely, 2^673446727044 is an apocalyptic number.

673446727044 is the 820638-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673446727044

673446727044 is an abundant number, since it is smaller than the sum of its proper divisors (1565714573073).

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

673446727044 is a wasteful number, since it uses less digits than its factorization.

673446727044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 54.

The spelling of 673446727044 in words is "six hundred seventy-three billion, four hundred forty-six million, seven hundred twenty-seven thousand, forty-four".