12948761543 has 4 divisors (see below), whose sum is σ = 12984044640. Its totient is φ = 12913478448.

The previous prime is 12948761537. The next prime is 12948761557. The reversal of 12948761543 is 34516784921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34516784921 = 17 ⋅2030399113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12948761543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12948761491 and 12948761500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12948767543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17640998 + ... + 17641731.

It is an arithmetic number, because the mean of its divisors is an integer number (3246011160).

Almost surely, 2^12948761543 is an apocalyptic number.

12948761543 is a deficient number, since it is larger than the sum of its proper divisors (35283097).

12948761543 is an equidigital number, since it uses as much as digits as its factorization.

12948761543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35283096.

The product of its digits is 1451520, while the sum is 50.

The spelling of 12948761543 in words is "twelve billion, nine hundred forty-eight million, seven hundred sixty-one thousand, five hundred forty-three".