673845265508 has 6 divisors (see below), whose sum is σ = 1179229214646. Its totient is φ = 336922632752.

The previous prime is 673845265507. The next prime is 673845265609. The reversal of 673845265508 is 805562548376.

It can be written as a sum of positive squares in only one way, i.e., 672331121764 + 1514143744 = 819958^2 + 38912^2 .

It is not an unprimeable number, because it can be changed into a prime (673845265507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84230658185 + ... + 84230658192.

It is an arithmetic number, because the mean of its divisors is an integer number (196538202441).

Almost surely, 2^673845265508 is an apocalyptic number.

It is an amenable number.

673845265508 is a deficient number, since it is larger than the sum of its proper divisors (505383949138).

673845265508 is a wasteful number, since it uses less digits than its factorization.

673845265508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168461316381 (or 168461316379 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 59.

The spelling of 673845265508 in words is "six hundred seventy-three billion, eight hundred forty-five million, two hundred sixty-five thousand, five hundred eight".