206251642753 has 8 divisors (see below), whose sum is σ = 222127932096. Its totient is φ = 190376893200.

The previous prime is 206251642717. The next prime is 206251642763. The reversal of 206251642753 is 357246152602.

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

It is a de Polignac number, because none of the positive numbers 2^k-206251642753 is a prime.

It is a super-2 number, since 2×206251642753² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206251642703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98863 + ... + 649828.

It is an arithmetic number, because the mean of its divisors is an integer number (27765991512).

Almost surely, 2^206251642753 is an apocalyptic number.

It is an amenable number.

206251642753 is a deficient number, since it is larger than the sum of its proper divisors (15876289343).

206251642753 is a wasteful number, since it uses less digits than its factorization.

206251642753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769895.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 206251642753 in words is "two hundred six billion, two hundred fifty-one million, six hundred forty-two thousand, seven hundred fifty-three".