12817749675 has 54 divisors (see below), whose sum is σ = 22541242908. Its totient is φ = 6425640960.

The previous prime is 12817749673. The next prime is 12817749689. The reversal of 12817749675 is 57694771821.

It is not a de Polignac number, because 12817749675 - 2¹ = 12817749673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12817749673) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 16667691 + ... + 16668459.

Almost surely, 2^12817749675 is an apocalyptic number.

12817749675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12817749675 is a deficient number, since it is larger than the sum of its proper divisors (9723493233).

12817749675 is an frugal number, since it uses more digits than its factorization.

12817749675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585 (or 794 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 57.

The spelling of 12817749675 in words is "twelve billion, eight hundred seventeen million, seven hundred forty-nine thousand, six hundred seventy-five".