1127649977447 has 32 divisors (see below), whose sum is σ = 1416749875200. Its totient is φ = 875132568288.

The previous prime is 1127649977431. The next prime is 1127649977459. The reversal of 1127649977447 is 7447799467211.

It is a cyclic number.

It is not a de Polignac number, because 1127649977447 - 2⁴ = 1127649977431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127649977477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3475754 + ... + 3786312.

It is an arithmetic number, because the mean of its divisors is an integer number (44273433600).

Almost surely, 2^{1127649977447} is an apocalyptic number.

1127649977447 is a deficient number, since it is larger than the sum of its proper divisors (289099897753).

1127649977447 is a wasteful number, since it uses less digits than its factorization.

1127649977447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311795.

The product of its digits is 149361408, while the sum is 68.

The spelling of 1127649977447 in words is "one trillion, one hundred twenty-seven billion, six hundred forty-nine million, nine hundred seventy-seven thousand, four hundred forty-seven".