128007432827 has 2 divisors, whose sum is σ = 128007432828. Its totient is φ = 128007432826.

The previous prime is 128007432823. The next prime is 128007432853. The reversal of 128007432827 is 728234700821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128007432827 - 2² = 128007432823 is a prime.

It is not a weakly prime, because it can be changed into another prime (128007432823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64003716413 + 64003716414.

It is an arithmetic number, because the mean of its divisors is an integer number (64003716414).

Almost surely, 2^128007432827 is an apocalyptic number.

128007432827 is a deficient number, since it is larger than the sum of its proper divisors (1).

128007432827 is an equidigital number, since it uses as much as digits as its factorization.

128007432827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 128007432827 in words is "one hundred twenty-eight billion, seven million, four hundred thirty-two thousand, eight hundred twenty-seven".