4124728691 has 2 divisors, whose sum is σ = 4124728692. Its totient is φ = 4124728690.

The previous prime is 4124728651. The next prime is 4124728693. The reversal of 4124728691 is 1968274214.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4124728691 - 2²⁶ = 4057619827 is a prime.

Together with 4124728693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4124728693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2062364345 + 2062364346.

It is an arithmetic number, because the mean of its divisors is an integer number (2062364346).

Almost surely, 2^4124728691 is an apocalyptic number.

4124728691 is a deficient number, since it is larger than the sum of its proper divisors (1).

4124728691 is an equidigital number, since it uses as much as digits as its factorization.

4124728691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 4124728691 is about 64224.0507208943. The cubic root of 4124728691 is about 1603.7320033005.

The spelling of 4124728691 in words is "four billion, one hundred twenty-four million, seven hundred twenty-eight thousand, six hundred ninety-one".