3261648387100 has 72 divisors (see below), whose sum is σ = 7342807808000. Its totient is φ = 1256228740800.

The previous prime is 3261648387091. The next prime is 3261648387187. The reversal of 3261648387100 is 17838461623.

It is a congruent 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, 2026680 + ... + 3260479.

Almost surely, 2^{3261648387100} is an apocalyptic number.

It is an amenable number.

3261648387100 is an abundant number, since it is smaller than the sum of its proper divisors (4081159420900).

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

3261648387100 is a wasteful number, since it uses less digits than its factorization.

3261648387100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287403 (or 5287396 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 3261648387100 in words is "three trillion, two hundred sixty-one billion, six hundred forty-eight million, three hundred eighty-seven thousand, one hundred".