12980123526 has 32 divisors (see below), whose sum is σ = 27496994400. Its totient is φ = 4070762496.

The previous prime is 12980123521. The next prime is 12980123549. The reversal of 12980123526 is 62532108921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12980123521) 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, 290130 + ... + 331866.

It is an arithmetic number, because the mean of its divisors is an integer number (859281075).

Almost surely, 2^12980123526 is an apocalyptic number.

12980123526 is an abundant number, since it is smaller than the sum of its proper divisors (14516870874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12980123526 is a wasteful number, since it uses less digits than its factorization.

12980123526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44808.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 12980123526 in words is "twelve billion, nine hundred eighty million, one hundred twenty-three thousand, five hundred twenty-six".