124727485813 has 4 divisors (see below), whose sum is σ = 142545698080. Its totient is φ = 106909273548.

The previous prime is 124727485789. The next prime is 124727485867. The reversal of 124727485813 is 318584727421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 124727485813 - 2⁵ = 124727485781 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 (124727485913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8909106123 + ... + 8909106136.

It is an arithmetic number, because the mean of its divisors is an integer number (35636424520).

Almost surely, 2^124727485813 is an apocalyptic number.

It is an amenable number.

124727485813 is a deficient number, since it is larger than the sum of its proper divisors (17818212267).

124727485813 is an equidigital number, since it uses as much as digits as its factorization.

124727485813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17818212266.

The product of its digits is 3010560, while the sum is 52.

The spelling of 124727485813 in words is "one hundred twenty-four billion, seven hundred twenty-seven million, four hundred eighty-five thousand, eight hundred thirteen".