12277843487 has 16 divisors (see below), whose sum is σ = 15144897600. Its totient is φ = 9692669952.

The previous prime is 12277843471. The next prime is 12277843489. The reversal of 12277843487 is 78434877221.

It is not a de Polignac number, because 12277843487 - 2⁴ = 12277843471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277843489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109388 + ... + 191105.

It is an arithmetic number, because the mean of its divisors is an integer number (946556100).

Almost surely, 2^12277843487 is an apocalyptic number.

12277843487 is a deficient number, since it is larger than the sum of its proper divisors (2867054113).

12277843487 is a wasteful number, since it uses less digits than its factorization.

12277843487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300962.

The product of its digits is 4214784, while the sum is 53.

The spelling of 12277843487 in words is "twelve billion, two hundred seventy-seven million, eight hundred forty-three thousand, four hundred eighty-seven".