12040256734 has 12 divisors (see below), whose sum is σ = 19851498072. Its totient is φ = 5472843860.

The previous prime is 12040256707. The next prime is 12040256773. The reversal of 12040256734 is 43765204021.

It is a self number, because there is not a number n which added to its sum of digits gives 12040256734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24876322 + ... + 24876805.

It is an arithmetic number, because the mean of its divisors is an integer number (1654291506).

Almost surely, 2^12040256734 is an apocalyptic number.

12040256734 is a deficient number, since it is larger than the sum of its proper divisors (7811241338).

12040256734 is a wasteful number, since it uses less digits than its factorization.

12040256734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49753151 (or 49753140 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 12040256734 in words is "twelve billion, forty million, two hundred fifty-six thousand, seven hundred thirty-four".