261486883223300 has 72 divisors (see below), whose sum is σ = 652370629190784. Its totient is φ = 89115803447040.

The previous prime is 261486883223297. The next prime is 261486883223323. The reversal of 261486883223300 is 3322388684162.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1118304329 + ... + 1118538128.

Almost surely, 2^{261486883223300} is an apocalyptic number.

261486883223300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261486883223300 is an abundant number, since it is smaller than the sum of its proper divisors (390883745967484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261486883223300 is a wasteful number, since it uses less digits than its factorization.

261486883223300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236842645 (or 2236842638 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 56.

The spelling of 261486883223300 in words is "two hundred sixty-one trillion, four hundred eighty-six billion, eight hundred eighty-three million, two hundred twenty-three thousand, three hundred".