206124695939 has 4 divisors (see below), whose sum is σ = 206125627800. Its totient is φ = 206123764080.

The previous prime is 206124695911. The next prime is 206124695941. The reversal of 206124695939 is 939596421602.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206124695939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206124695999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75887 + ... + 646535.

It is an arithmetic number, because the mean of its divisors is an integer number (51531406950).

Almost surely, 2^206124695939 is an apocalyptic number.

206124695939 is a deficient number, since it is larger than the sum of its proper divisors (931861).

206124695939 is an equidigital number, since it uses as much as digits as its factorization.

206124695939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931860.

The product of its (nonzero) digits is 6298560, while the sum is 56.

The spelling of 206124695939 in words is "two hundred six billion, one hundred twenty-four million, six hundred ninety-five thousand, nine hundred thirty-nine".