261442210600 has 48 divisors (see below), whose sum is σ = 610531012800. Its totient is φ = 104116175040.

The previous prime is 261442210591. The next prime is 261442210613. The reversal of 261442210600 is 6012244162.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2833920 + ... + 2924719.

It is an arithmetic number, because the mean of its divisors is an integer number (12719396100).

Almost surely, 2^261442210600 is an apocalyptic number.

261442210600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

261442210600 is an abundant number, since it is smaller than the sum of its proper divisors (349088802200).

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

261442210600 is a wasteful number, since it uses less digits than its factorization.

261442210600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5758882 (or 5758873 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 261442210600 its reverse (6012244162), we get a palindrome (267454454762).

The spelling of 261442210600 in words is "two hundred sixty-one billion, four hundred forty-two million, two hundred ten thousand, six hundred".