12795501543 has 16 divisors (see below), whose sum is σ = 18616715136. Its totient is φ = 7752734240.

The previous prime is 12795501517. The next prime is 12795501547. The reversal of 12795501543 is 34510559721.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12795501543 - 2⁶ = 12795501479 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12795501495 and 12795501504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12795501547) 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, 74521 + ... + 176477.

It is an arithmetic number, because the mean of its divisors is an integer number (1163544696).

Almost surely, 2^12795501543 is an apocalyptic number.

12795501543 is a deficient number, since it is larger than the sum of its proper divisors (5821213593).

12795501543 is a wasteful number, since it uses less digits than its factorization.

12795501543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105774.

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 12795501543 in words is "twelve billion, seven hundred ninety-five million, five hundred one thousand, five hundred forty-three".