123863944837 has 2 divisors, whose sum is σ = 123863944838. Its totient is φ = 123863944836.

The previous prime is 123863944793. The next prime is 123863944849. The reversal of 123863944837 is 738449368321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113704514401 + 10159430436 = 337201^2 + 100794^2 .

It is a cyclic number.

It is not a de Polignac number, because 123863944837 - 2¹⁵ = 123863912069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123863944637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61931972418 + 61931972419.

It is an arithmetic number, because the mean of its divisors is an integer number (61931972419).

Almost surely, 2^123863944837 is an apocalyptic number.

It is an amenable number.

123863944837 is a deficient number, since it is larger than the sum of its proper divisors (1).

123863944837 is an equidigital number, since it uses as much as digits as its factorization.

123863944837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20901888, while the sum is 58.

The spelling of 123863944837 in words is "one hundred twenty-three billion, eight hundred sixty-three million, nine hundred forty-four thousand, eight hundred thirty-seven".