1227731342487 has 16 divisors (see below), whose sum is σ = 1764427972608. Its totient is φ = 754870543200.

The previous prime is 1227731342477. The next prime is 1227731342507. The reversal of 1227731342487 is 7842431377221.

It is not a de Polignac number, because 1227731342487 - 2⁶ = 1227731342423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227731342477) 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, 13630303 + ... + 13720080.

It is an arithmetic number, because the mean of its divisors is an integer number (110276748288).

Almost surely, 2^{1227731342487} is an apocalyptic number.

1227731342487 is a deficient number, since it is larger than the sum of its proper divisors (536696630121).

1227731342487 is a wasteful number, since it uses less digits than its factorization.

1227731342487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27351550.

The product of its digits is 3161088, while the sum is 51.

The spelling of 1227731342487 in words is "one trillion, two hundred twenty-seven billion, seven hundred thirty-one million, three hundred forty-two thousand, four hundred eighty-seven".