673873526404 has 27 divisors (see below), whose sum is σ = 1277010841743. Its totient is φ = 311008699872.

The previous prime is 673873526371. The next prime is 673873526423. The reversal of 673873526404 is 404625378376.

It is a happy number.

The square root of 673873526404 is 820898.

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

It can be written as a sum of positive squares in 4 ways, for example, as 128520816004 + 545352710400 = 358498^2 + 738480^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21327562 + ... + 21359134.

Almost surely, 2^673873526404 is an apocalyptic number.

673873526404 is the 820898-th square number.

It is an amenable number.

673873526404 is a deficient number, since it is larger than the sum of its proper divisors (603137315339).

673873526404 is an frugal number, since it uses more digits than its factorization.

673873526404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63176 (or 31588 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 55.

The spelling of 673873526404 in words is "six hundred seventy-three billion, eight hundred seventy-three million, five hundred twenty-six thousand, four hundred four".