128475551843 has 2 divisors, whose sum is σ = 128475551844. Its totient is φ = 128475551842.

The previous prime is 128475551821. The next prime is 128475551849. The reversal of 128475551843 is 348155574821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128475551843 - 2³² = 124180584547 is a prime.

It is not a weakly prime, because it can be changed into another prime (128475551849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64237775921 + 64237775922.

It is an arithmetic number, because the mean of its divisors is an integer number (64237775922).

Almost surely, 2^128475551843 is an apocalyptic number.

128475551843 is a deficient number, since it is larger than the sum of its proper divisors (1).

128475551843 is an equidigital number, since it uses as much as digits as its factorization.

128475551843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376000, while the sum is 53.

The spelling of 128475551843 in words is "one hundred twenty-eight billion, four hundred seventy-five million, five hundred fifty-one thousand, eight hundred forty-three".