124347963989 has 4 divisors (see below), whose sum is σ = 131662550124. Its totient is φ = 117033377856.

The previous prime is 124347963979. The next prime is 124347964021. The reversal of 124347963989 is 989369743421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96747125764 + 27600838225 = 311042^2 + 166135^2 .

It is a cyclic number.

It is not a de Polignac number, because 124347963989 - 2¹⁶ = 124347898453 is a prime.

It is a super-2 number, since 2×124347963989² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124347963979) 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 in 3 ways as a sum of consecutive naturals, for example, 3657293042 + ... + 3657293075.

It is an arithmetic number, because the mean of its divisors is an integer number (32915637531).

Almost surely, 2^124347963989 is an apocalyptic number.

It is an amenable number.

124347963989 is a deficient number, since it is larger than the sum of its proper divisors (7314586135).

124347963989 is an equidigital number, since it uses as much as digits as its factorization.

124347963989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7314586134.

The product of its digits is 70543872, while the sum is 65.

The spelling of 124347963989 in words is "one hundred twenty-four billion, three hundred forty-seven million, nine hundred sixty-three thousand, nine hundred eighty-nine".