674261678566 has 8 divisors (see below), whose sum is σ = 1155877163280. Its totient is φ = 288969290808.

The previous prime is 674261678557. The next prime is 674261678621. The reversal of 674261678566 is 665876162476.

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

It is a super-2 number, since 2×674261678566² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 674261678498 and 674261678507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24080774221 + ... + 24080774248.

It is an arithmetic number, because the mean of its divisors is an integer number (144484645410).

Almost surely, 2^674261678566 is an apocalyptic number.

674261678566 is a deficient number, since it is larger than the sum of its proper divisors (481615484714).

674261678566 is a wasteful number, since it uses less digits than its factorization.

674261678566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48161548478.

The product of its digits is 121927680, while the sum is 64.

The spelling of 674261678566 in words is "six hundred seventy-four billion, two hundred sixty-one million, six hundred seventy-eight thousand, five hundred sixty-six".