128118472379 has 2 divisors, whose sum is σ = 128118472380. Its totient is φ = 128118472378.

The previous prime is 128118472369. The next prime is 128118472421. The reversal of 128118472379 is 973274811821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128118472379 - 2⁸ = 128118472123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128118472379.

It is not a weakly prime, because it can be changed into another prime (128118472369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64059236189 + 64059236190.

It is an arithmetic number, because the mean of its divisors is an integer number (64059236190).

Almost surely, 2^128118472379 is an apocalyptic number.

128118472379 is a deficient number, since it is larger than the sum of its proper divisors (1).

128118472379 is an equidigital number, since it uses as much as digits as its factorization.

128118472379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 53.

The spelling of 128118472379 in words is "one hundred twenty-eight billion, one hundred eighteen million, four hundred seventy-two thousand, three hundred seventy-nine".