12265407639 has 64 divisors (see below), whose sum is σ = 20769177600. Its totient is φ = 7107319296.

The previous prime is 12265407617. The next prime is 12265407643. The reversal of 12265407639 is 93670456221.

12265407639 is a `hidden beast` number, since 1 + 2 + 2 + 6 + 5 + 4 + 0 + 7 + 639 = 666.

12265407639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12265407639 - 2¹⁵ = 12265374871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12265407594 and 12265407603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12265403639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 286122 + ... + 326184.

It is an arithmetic number, because the mean of its divisors is an integer number (324518400).

Almost surely, 2^12265407639 is an apocalyptic number.

12265407639 is a deficient number, since it is larger than the sum of its proper divisors (8503769961).

12265407639 is a wasteful number, since it uses less digits than its factorization.

12265407639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40141 (or 40135 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

It can be divided in two parts, 12265 and 407639, that added together give a square (419904 = 648²).

The spelling of 12265407639 in words is "twelve billion, two hundred sixty-five million, four hundred seven thousand, six hundred thirty-nine".