2108425969764 has 45 divisors (see below), whose sum is σ = 5511910291657. Its totient is φ = 702799944336.

The previous prime is 2108425969717. The next prime is 2108425969831. The reversal of 2108425969764 is 4679695248012.

The square root of 2108425969764 is 1452042.

It is a perfect power (a square), and thus also a powerful number.

2108425969764 is a `hidden beast` number, since 210 + 84 + 259 + 6 + 97 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 344735728164 + 1763690241600 = 587142^2 + 1328040^2 .

It is a Duffinian 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 14 ways as a sum of consecutive naturals, for example, 26096422 + ... + 26177090.

Almost surely, 2^{2108425969764} is an apocalyptic number.

2108425969764 is the 1452042-nd square number.

It is an amenable number.

2108425969764 is an abundant number, since it is smaller than the sum of its proper divisors (3403484321893).

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

2108425969764 is an frugal number, since it uses more digits than its factorization.

2108425969764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161354 (or 80674 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 2108425969764 in words is "two trillion, one hundred eight billion, four hundred twenty-five million, nine hundred sixty-nine thousand, seven hundred sixty-four".