12540632012 has 24 divisors (see below), whose sum is σ = 23261106960. Its totient is φ = 5895365120.

The previous prime is 12540632011. The next prime is 12540632051. The reversal of 12540632012 is 21023604521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12540632011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28937 + ... + 160992.

It is an arithmetic number, because the mean of its divisors is an integer number (969212790).

Almost surely, 2^12540632012 is an apocalyptic number.

It is an amenable number.

12540632012 is a deficient number, since it is larger than the sum of its proper divisors (10720474948).

12540632012 is a wasteful number, since it uses less digits than its factorization.

12540632012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190921 (or 190919 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 12540632012 in words is "twelve billion, five hundred forty million, six hundred thirty-two thousand, twelve".