4128992779 has 2 divisors, whose sum is σ = 4128992780. Its totient is φ = 4128992778.

The previous prime is 4128992737. The next prime is 4128992797. The reversal of 4128992779 is 9772998214.

Together with next prime (4128992797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4128992779 - 2²⁹ = 3592121867 is a prime.

It is not a weakly prime, because it can be changed into another prime (4128992279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2064496389 + 2064496390.

It is an arithmetic number, because the mean of its divisors is an integer number (2064496390).

Almost surely, 2^4128992779 is an apocalyptic number.

4128992779 is a deficient number, since it is larger than the sum of its proper divisors (1).

4128992779 is an equidigital number, since it uses as much as digits as its factorization.

4128992779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 58.

The square root of 4128992779 is about 64257.2391174722. The cubic root of 4128992779 is about 1604.2844516961.

The spelling of 4128992779 in words is "four billion, one hundred twenty-eight million, nine hundred ninety-two thousand, seven hundred seventy-nine".