206349183889 has 8 divisors (see below), whose sum is σ = 207329908032. Its totient is φ = 205370493840.

The previous prime is 206349183883. The next prime is 206349183907. The reversal of 206349183889 is 988381943602.

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

It is a cyclic number.

It is not a de Polignac number, because 206349183889 - 2⁵ = 206349183857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206349183883) 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, 304959 + ... + 711124.

It is an arithmetic number, because the mean of its divisors is an integer number (25916238504).

Almost surely, 2^206349183889 is an apocalyptic number.

It is an amenable number.

206349183889 is a deficient number, since it is larger than the sum of its proper divisors (980724143).

206349183889 is a wasteful number, since it uses less digits than its factorization.

206349183889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017047.

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 206349183889 in words is "two hundred six billion, three hundred forty-nine million, one hundred eighty-three thousand, eight hundred eighty-nine".