12602981169 has 27 divisors (see below), whose sum is σ = 19041914073. Its totient is φ = 8031744072.

The previous prime is 12602981159. The next prime is 12602981203. The reversal of 12602981169 is 96118920621.

The square root of 12602981169 is 112263.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 12602981169 - 2⁵ = 12602981137 is a prime.

It is a super-2 number, since 2×12602981169² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12602981159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7745334 + ... + 7746960.

Almost surely, 2^12602981169 is an apocalyptic number.

12602981169 is the 112263-rd square number.

12602981169 is the 56132-nd centered octagonal number.

It is an amenable number.

12602981169 is a deficient number, since it is larger than the sum of its proper divisors (6438932904).

12602981169 is an frugal number, since it uses more digits than its factorization.

12602981169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306 (or 1653 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 12602981169 in words is "twelve billion, six hundred two million, nine hundred eighty-one thousand, one hundred sixty-nine".