124399681447 has 2 divisors, whose sum is σ = 124399681448. Its totient is φ = 124399681446.

The previous prime is 124399681337. The next prime is 124399681487. The reversal of 124399681447 is 744186993421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124399681447 - 2³⁵ = 90039943079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124399681391 and 124399681400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124399681487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62199840723 + 62199840724.

It is an arithmetic number, because the mean of its divisors is an integer number (62199840724).

Almost surely, 2^124399681447 is an apocalyptic number.

124399681447 is a deficient number, since it is larger than the sum of its proper divisors (1).

124399681447 is an equidigital number, since it uses as much as digits as its factorization.

124399681447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10450944, while the sum is 58.

The spelling of 124399681447 in words is "one hundred twenty-four billion, three hundred ninety-nine million, six hundred eighty-one thousand, four hundred forty-seven".