12873791477 has 2 divisors, whose sum is σ = 12873791478. Its totient is φ = 12873791476.

The previous prime is 12873791473. The next prime is 12873791503. The reversal of 12873791477 is 77419737821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11391079441 + 1482712036 = 106729^2 + 38506^2 .

It is a cyclic number.

It is not a de Polignac number, because 12873791477 - 2² = 12873791473 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12873791473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6436895738 + 6436895739.

It is an arithmetic number, because the mean of its divisors is an integer number (6436895739).

Almost surely, 2^12873791477 is an apocalyptic number.

It is an amenable number.

12873791477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12873791477 is an equidigital number, since it uses as much as digits as its factorization.

12873791477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4148928, while the sum is 56.

The spelling of 12873791477 in words is "twelve billion, eight hundred seventy-three million, seven hundred ninety-one thousand, four hundred seventy-seven".