124768361989 has 2 divisors, whose sum is σ = 124768361990. Its totient is φ = 124768361988.

The previous prime is 124768361933. The next prime is 124768362007. The reversal of 124768361989 is 989163867421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105712768225 + 19055593764 = 325135^2 + 138042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124768361989 is a prime.

It is a super-2 number, since 2×124768361989² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 124768361989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124768361089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62384180994 + 62384180995.

It is an arithmetic number, because the mean of its divisors is an integer number (62384180995).

Almost surely, 2^124768361989 is an apocalyptic number.

It is an amenable number.

124768361989 is a deficient number, since it is larger than the sum of its proper divisors (1).

124768361989 is an equidigital number, since it uses as much as digits as its factorization.

124768361989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31352832, while the sum is 64.

The spelling of 124768361989 in words is "one hundred twenty-four billion, seven hundred sixty-eight million, three hundred sixty-one thousand, nine hundred eighty-nine".