12917980443 has 16 divisors (see below), whose sum is σ = 17384232096. Its totient is φ = 8531927040.

The previous prime is 12917980441. The next prime is 12917980463. The reversal of 12917980443 is 34408971921.

It is not a de Polignac number, because 12917980443 - 2¹ = 12917980441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12917980392 and 12917980401.

It is not an unprimeable number, because it can be changed into a prime (12917980441) 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, 879883 + ... + 894443.

It is an arithmetic number, because the mean of its divisors is an integer number (1086514506).

Almost surely, 2^12917980443 is an apocalyptic number.

12917980443 is a deficient number, since it is larger than the sum of its proper divisors (4466251653).

12917980443 is a wasteful number, since it uses less digits than its factorization.

12917980443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17294.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 12917980443 in words is "twelve billion, nine hundred seventeen million, nine hundred eighty thousand, four hundred forty-three".