124218289845 has 48 divisors (see below), whose sum is σ = 239869833840. Its totient is φ = 59044866048.

The previous prime is 124218289799. The next prime is 124218289873. The reversal of 124218289845 is 548982812421.

124218289845 is a `hidden beast` number, since 12 + 421 + 82 + 8 + 98 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1734389316 + 122483900529 = 41646^2 + 349977^2 .

It is not a de Polignac number, because 124218289845 - 2¹⁸ = 124218027701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124218289791 and 124218289800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3644052 + ... + 3677981.

It is an arithmetic number, because the mean of its divisors is an integer number (4997288205).

Almost surely, 2^124218289845 is an apocalyptic number.

124218289845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124218289845 is a deficient number, since it is larger than the sum of its proper divisors (115651543995).

124218289845 is a wasteful number, since it uses less digits than its factorization.

124218289845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7322086 (or 7322083 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 54.

The spelling of 124218289845 in words is "one hundred twenty-four billion, two hundred eighteen million, two hundred eighty-nine thousand, eight hundred forty-five".