674216612477 has 2 divisors, whose sum is σ = 674216612478. Its totient is φ = 674216612476.

The previous prime is 674216612467. The next prime is 674216612497. The reversal of 674216612477 is 774216612476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 626977328761 + 47239283716 = 791819^2 + 217346^2 .

It is a cyclic number.

It is not a de Polignac number, because 674216612477 - 2⁶ = 674216612413 is a prime.

It is a super-2 number, since 2×674216612477² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674216612437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337108306238 + 337108306239.

It is an arithmetic number, because the mean of its divisors is an integer number (337108306239).

Almost surely, 2^674216612477 is an apocalyptic number.

It is an amenable number.

674216612477 is a deficient number, since it is larger than the sum of its proper divisors (1).

674216612477 is an equidigital number, since it uses as much as digits as its factorization.

674216612477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4741632, while the sum is 53.

Subtracting 674216612477 from its reverse (774216612476), we obtain a palindrome (99999999999).

The spelling of 674216612477 in words is "six hundred seventy-four billion, two hundred sixteen million, six hundred twelve thousand, four hundred seventy-seven".