12707624245 has 4 divisors (see below), whose sum is σ = 15249149100. Its totient is φ = 10166099392.

The previous prime is 12707624243. The next prime is 12707624263. The reversal of 12707624245 is 54242670721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54242670721 = 2339 ⋅23190539.

It can be written as a sum of positive squares in 2 ways, for example, as 1532174449 + 11175449796 = 39143^2 + 105714^2 .

It is a cyclic number.

It is not a de Polignac number, because 12707624245 - 2¹ = 12707624243 is a prime.

It is a super-2 number, since 2×12707624245² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12707624198 and 12707624207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12707624243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270762420 + ... + 1270762429.

It is an arithmetic number, because the mean of its divisors is an integer number (3812287275).

Almost surely, 2^12707624245 is an apocalyptic number.

It is an amenable number.

12707624245 is a deficient number, since it is larger than the sum of its proper divisors (2541524855).

12707624245 is an equidigital number, since it uses as much as digits as its factorization.

12707624245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541524854.

The product of its (nonzero) digits is 188160, while the sum is 40.

It can be divided in two parts, 127076 and 24245, that added together give a square (151321 = 389²).

The spelling of 12707624245 in words is "twelve billion, seven hundred seven million, six hundred twenty-four thousand, two hundred forty-five".