206880438859775 has 48 divisors (see below), whose sum is σ = 260910660523968. Its totient is φ = 162693070848000.

The previous prime is 206880438859769. The next prime is 206880438859793. The reversal of 206880438859775 is 577958834088602.

It is not a de Polignac number, because 206880438859775 - 2¹² = 206880438855679 is a prime.

It is a super-2 number, since 2×206880438859775² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206880438859775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10376698607 + ... + 10376718543.

It is an arithmetic number, because the mean of its divisors is an integer number (5435638760916).

Almost surely, 2^{206880438859775} is an apocalyptic number.

206880438859775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

206880438859775 is a deficient number, since it is larger than the sum of its proper divisors (54030221664193).

206880438859775 is a wasteful number, since it uses less digits than its factorization.

206880438859775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36932 (or 36927 counting only the distinct ones).

The product of its (nonzero) digits is 6502809600, while the sum is 80.

The spelling of 206880438859775 in words is "two hundred six trillion, eight hundred eighty billion, four hundred thirty-eight million, eight hundred fifty-nine thousand, seven hundred seventy-five".