206769490875 has 48 divisors (see below), whose sum is σ = 373187773920. Its totient is φ = 110143540800.

The previous prime is 206769490831. The next prime is 206769490883. The reversal of 206769490875 is 578094967602.

206769490875 is a `hidden beast` number, since 2 + 0 + 6 + 7 + 69 + 490 + 87 + 5 = 666.

It is not a de Polignac number, because 206769490875 - 2¹⁷ = 206769359803 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 821772 + ... + 1043478.

It is an arithmetic number, because the mean of its divisors is an integer number (7774745290).

Almost surely, 2^206769490875 is an apocalyptic number.

206769490875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

206769490875 is a deficient number, since it is larger than the sum of its proper divisors (166418283045).

206769490875 is a wasteful number, since it uses less digits than its factorization.

206769490875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222557 (or 222544 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 206769490875 in words is "two hundred six billion, seven hundred sixty-nine million, four hundred ninety thousand, eight hundred seventy-five".