674223587999 has 8 divisors (see below), whose sum is σ = 726110552832. Its totient is φ = 622339996320.

The previous prime is 674223587977. The next prime is 674223588007. The reversal of 674223587999 is 999785322476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674223587999 is a prime.

It is a super-2 number, since 2×674223587999² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674223587099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420287 + ... + 1234944.

It is an arithmetic number, because the mean of its divisors is an integer number (90763819104).

Almost surely, 2^674223587999 is an apocalyptic number.

674223587999 is a deficient number, since it is larger than the sum of its proper divisors (51886964833).

674223587999 is a wasteful number, since it uses less digits than its factorization.

674223587999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686577.

The product of its digits is 411505920, while the sum is 71.

The spelling of 674223587999 in words is "six hundred seventy-four billion, two hundred twenty-three million, five hundred eighty-seven thousand, nine hundred ninety-nine".