124908987899 has 2 divisors, whose sum is σ = 124908987900. Its totient is φ = 124908987898.

The previous prime is 124908987803. The next prime is 124908987901. The reversal of 124908987899 is 998789809421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124908987899 - 2²⁰ = 124907939323 is a prime.

Together with 124908987901, 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 (124908987499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62454493949 + 62454493950.

It is an arithmetic number, because the mean of its divisors is an integer number (62454493950).

Almost surely, 2^124908987899 is an apocalyptic number.

124908987899 is a deficient number, since it is larger than the sum of its proper divisors (1).

124908987899 is an equidigital number, since it uses as much as digits as its factorization.

124908987899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188116992, while the sum is 74.

The spelling of 124908987899 in words is "one hundred twenty-four billion, nine hundred eight million, nine hundred eighty-seven thousand, eight hundred ninety-nine".