128463147627 has 4 divisors (see below), whose sum is σ = 171284196840. Its totient is φ = 85642098416.

The previous prime is 128463147611. The next prime is 128463147629. The reversal of 128463147627 is 726741364821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 726741364821 = 3 ⋅242247121607.

It is a cyclic number.

It is not a de Polignac number, because 128463147627 - 2⁴ = 128463147611 is a prime.

It is a super-2 number, since 2×128463147627² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128463147627.

It is not an unprimeable number, because it can be changed into a prime (128463147629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21410524602 + ... + 21410524607.

It is an arithmetic number, because the mean of its divisors is an integer number (42821049210).

Almost surely, 2^128463147627 is an apocalyptic number.

128463147627 is a deficient number, since it is larger than the sum of its proper divisors (42821049213).

128463147627 is an equidigital number, since it uses as much as digits as its factorization.

128463147627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42821049212.

The product of its digits is 2709504, while the sum is 51.

The spelling of 128463147627 in words is "one hundred twenty-eight billion, four hundred sixty-three million, one hundred forty-seven thousand, six hundred twenty-seven".