124782743661 has 8 divisors (see below), whose sum is σ = 166378813920. Its totient is φ = 83187584592.

The previous prime is 124782743651. The next prime is 124782743693. The reversal of 124782743661 is 166347287421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 124782743661 - 2⁶ = 124782743597 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124782743651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214335 + ... + 543603.

It is an arithmetic number, because the mean of its divisors is an integer number (20797351740).

Almost surely, 2^124782743661 is an apocalyptic number.

It is an amenable number.

124782743661 is a deficient number, since it is larger than the sum of its proper divisors (41596070259).

124782743661 is a wasteful number, since it uses less digits than its factorization.

124782743661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455595.

The product of its digits is 2709504, while the sum is 51.

The spelling of 124782743661 in words is "one hundred twenty-four billion, seven hundred eighty-two million, seven hundred forty-three thousand, six hundred sixty-one".