674401674533 has 4 divisors (see below), whose sum is σ = 674405320608. Its totient is φ = 674398028460.

The previous prime is 674401674521. The next prime is 674401674559. The reversal of 674401674533 is 335476104476.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 674401674533 - 2¹⁶ = 674401608997 is a prime.

It is a super-2 number, since 2×674401674533² (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 (674401670533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1529873 + ... + 1920758.

It is an arithmetic number, because the mean of its divisors is an integer number (168601330152).

Almost surely, 2^674401674533 is an apocalyptic number.

It is an amenable number.

674401674533 is a deficient number, since it is larger than the sum of its proper divisors (3646075).

674401674533 is a wasteful number, since it uses less digits than its factorization.

674401674533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646074.

The product of its (nonzero) digits is 5080320, while the sum is 50.

The spelling of 674401674533 in words is "six hundred seventy-four billion, four hundred one million, six hundred seventy-four thousand, five hundred thirty-three".