12773936145 has 16 divisors (see below), whose sum is σ = 20444276160. Its totient is φ = 6810773184.

The previous prime is 12773936141. The next prime is 12773936183. The reversal of 12773936145 is 54163937721.

It is a happy number.

It is not a de Polignac number, because 12773936145 - 2² = 12773936141 is a prime.

It is a super-2 number, since 2×12773936145² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12773936094 and 12773936103.

It is not an unprimeable number, because it can be changed into a prime (12773936141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70810 + ... + 174819.

It is an arithmetic number, because the mean of its divisors is an integer number (1277767260).

Almost surely, 2^12773936145 is an apocalyptic number.

12773936145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12773936145 is a deficient number, since it is larger than the sum of its proper divisors (7670340015).

12773936145 is a wasteful number, since it uses less digits than its factorization.

12773936145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249104.

The product of its digits is 952560, while the sum is 48.

The spelling of 12773936145 in words is "twelve billion, seven hundred seventy-three million, nine hundred thirty-six thousand, one hundred forty-five".