12540534284 has 12 divisors (see below), whose sum is σ = 22653868608. Its totient is φ = 6068000400.

The previous prime is 12540534217. The next prime is 12540534289. The reversal of 12540534284 is 48243504521.

It is not an unprimeable number, because it can be changed into a prime (12540534289) 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, 50566547 + ... + 50566794.

It is an arithmetic number, because the mean of its divisors is an integer number (1887822384).

Almost surely, 2^12540534284 is an apocalyptic number.

It is an amenable number.

12540534284 is a deficient number, since it is larger than the sum of its proper divisors (10113334324).

12540534284 is a wasteful number, since it uses less digits than its factorization.

12540534284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101133376 (or 101133374 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 12540534284 in words is "twelve billion, five hundred forty million, five hundred thirty-four thousand, two hundred eighty-four".