12740154774 has 16 divisors (see below), whose sum is σ = 25482536112. Its totient is φ = 4246347168.

The previous prime is 12740154751. The next prime is 12740154809. The reversal of 12740154774 is 47745104721.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13129 + ... + 160164.

It is an arithmetic number, because the mean of its divisors is an integer number (1592658507).

Almost surely, 2^12740154774 is an apocalyptic number.

12740154774 is an abundant number, since it is smaller than the sum of its proper divisors (12742381338).

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

12740154774 is a wasteful number, since it uses less digits than its factorization.

12740154774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185551.

The product of its (nonzero) digits is 219520, while the sum is 42.

The spelling of 12740154774 in words is "twelve billion, seven hundred forty million, one hundred fifty-four thousand, seven hundred seventy-four".