1227643407727 has 12 divisors (see below), whose sum is σ = 1420413862840. Its totient is φ = 1057300540560.

The previous prime is 1227643407701. The next prime is 1227643407733. The reversal of 1227643407727 is 7277043467221.

It is not a de Polignac number, because 1227643407727 - 2²⁷ = 1227509189999 is a prime.

It is a super-2 number, since 2×1227643407727² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227643407127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266992788 + ... + 266997385.

Almost surely, 2^{1227643407727} is an apocalyptic number.

1227643407727 is a deficient number, since it is larger than the sum of its proper divisors (192770455113).

1227643407727 is a wasteful number, since it uses less digits than its factorization.

1227643407727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533990214 (or 533990203 counting only the distinct ones).

The product of its (nonzero) digits is 5531904, while the sum is 52.

The spelling of 1227643407727 in words is "one trillion, two hundred twenty-seven billion, six hundred forty-three million, four hundred seven thousand, seven hundred twenty-seven".