674887788479 has 2 divisors, whose sum is σ = 674887788480. Its totient is φ = 674887788478.

The previous prime is 674887788433. The next prime is 674887788481. The reversal of 674887788479 is 974887788476.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 674887788479 - 2¹² = 674887784383 is a prime.

Together with 674887788481, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 674887788397 and 674887788406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674887788979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337443894239 + 337443894240.

It is an arithmetic number, because the mean of its divisors is an integer number (337443894240).

Almost surely, 2^674887788479 is an apocalyptic number.

674887788479 is a deficient number, since it is larger than the sum of its proper divisors (1).

674887788479 is an equidigital number, since it uses as much as digits as its factorization.

674887788479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8497004544, while the sum is 83.

The spelling of 674887788479 in words is "six hundred seventy-four billion, eight hundred eighty-seven million, seven hundred eighty-eight thousand, four hundred seventy-nine".