123762389989 has 12 divisors (see below), whose sum is σ = 144327541068. Its totient is φ = 105817488000.

The previous prime is 123762389899. The next prime is 123762389999. The reversal of 123762389989 is 989983267321.

It can be written as a sum of positive squares in 2 ways, for example, as 104221145889 + 19541244100 = 322833^2 + 139790^2 .

It is not a de Polignac number, because 123762389989 - 2⁹ = 123762389477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123762389999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3129682 + ... + 3168979.

It is an arithmetic number, because the mean of its divisors is an integer number (12027295089).

Almost surely, 2^123762389989 is an apocalyptic number.

It is an amenable number.

123762389989 is a deficient number, since it is larger than the sum of its proper divisors (20565151079).

123762389989 is an equidigital number, since it uses as much as digits as its factorization.

123762389989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6299076 (or 6299069 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 67.

The spelling of 123762389989 in words is "one hundred twenty-three billion, seven hundred sixty-two million, three hundred eighty-nine thousand, nine hundred eighty-nine".