2108439806400 has 168 divisors, whose sum is σ = 7686044155440. Its totient is φ = 562250603520.

The previous prime is 2108439806383. The next prime is 2108439806443. The reversal of 2108439806400 is 46089348012.

It is a happy number.

2108439806400 is a `hidden beast` number, since 210 + 8 + 4 + 398 + 0 + 6 + 40 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24360039 + ... + 24446438.

It is an arithmetic number, because the mean of its divisors is an integer number (45750262830).

Almost surely, 2^{2108439806400} is an apocalyptic number.

2108439806400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2108439806400 is an abundant number, since it is smaller than the sum of its proper divisors (5577604349040).

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

2108439806400 is a wasteful number, since it uses less digits than its factorization.

2108439806400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48806508 (or 48806487 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 2108439806400 in words is "two trillion, one hundred eight billion, four hundred thirty-nine million, eight hundred six thousand, four hundred".