12540707672 has 8 divisors (see below), whose sum is σ = 23513826900. Its totient is φ = 6270353832.

The previous prime is 12540707659. The next prime is 12540707677. The reversal of 12540707672 is 27670704521.

12540707672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12540707677) 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 as a sum of consecutive naturals, namely, 783794222 + ... + 783794237.

Almost surely, 2^12540707672 is an apocalyptic number.

It is an amenable number.

12540707672 is a deficient number, since it is larger than the sum of its proper divisors (10973119228).

12540707672 is a wasteful number, since it uses less digits than its factorization.

12540707672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567588465 (or 1567588461 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 12540707672 in words is "twelve billion, five hundred forty million, seven hundred seven thousand, six hundred seventy-two".