12613897774 has 32 divisors (see below), whose sum is σ = 20006300160. Its totient is φ = 5952964512.

The previous prime is 12613897753. The next prime is 12613897787. The reversal of 12613897774 is 47779831621.

It is a super-2 number, since 2×12613897774² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1061892 + ... + 1073704.

It is an arithmetic number, because the mean of its divisors is an integer number (625196880).

Almost surely, 2^12613897774 is an apocalyptic number.

12613897774 is a deficient number, since it is larger than the sum of its proper divisors (7392402386).

12613897774 is a wasteful number, since it uses less digits than its factorization.

12613897774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12144.

The product of its digits is 3556224, while the sum is 55.

The spelling of 12613897774 in words is "twelve billion, six hundred thirteen million, eight hundred ninety-seven thousand, seven hundred seventy-four".