673662305825 has 24 divisors (see below), whose sum is σ = 844792518360. Its totient is φ = 532843315200.

The previous prime is 673662305677. The next prime is 673662305831. The reversal of 673662305825 is 528503266376.

It can be written as a sum of positive squares in 12 ways, for example, as 314578522129 + 359083783696 = 560873^2 + 599236^2 .

It is not a de Polignac number, because 673662305825 - 2¹⁶ = 673662240289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2309165 + ... + 2584485.

It is an arithmetic number, because the mean of its divisors is an integer number (35199688265).

Almost surely, 2^673662305825 is an apocalyptic number.

It is an amenable number.

673662305825 is a deficient number, since it is larger than the sum of its proper divisors (171130212535).

673662305825 is a wasteful number, since it uses less digits than its factorization.

673662305825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276437 (or 276432 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 53.

The spelling of 673662305825 in words is "six hundred seventy-three billion, six hundred sixty-two million, three hundred five thousand, eight hundred twenty-five".