124939381639 has 2 divisors, whose sum is σ = 124939381640. Its totient is φ = 124939381638.

The previous prime is 124939381603. The next prime is 124939381661. The reversal of 124939381639 is 936183939421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124939381639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124939381669) 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, 62469690819 + 62469690820.

It is an arithmetic number, because the mean of its divisors is an integer number (62469690820).

Almost surely, 2^124939381639 is an apocalyptic number.

124939381639 is a deficient number, since it is larger than the sum of its proper divisors (1).

124939381639 is an equidigital number, since it uses as much as digits as its factorization.

124939381639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7558272, while the sum is 58.

The spelling of 124939381639 in words is "one hundred twenty-four billion, nine hundred thirty-nine million, three hundred eighty-one thousand, six hundred thirty-nine".