2108156539392 has 480 divisors, whose sum is σ = 6336039378240. Its totient is φ = 674434252800.

The previous prime is 2108156539361. The next prime is 2108156539397. The reversal of 2108156539392 is 2939356518012.

2108156539392 is a `hidden beast` number, since 2 + 1 + 0 + 8 + 15 + 6 + 539 + 3 + 92 = 666.

It is not an unprimeable number, because it can be changed into a prime (2108156539397) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2005857267 + ... + 2005858317.

It is an arithmetic number, because the mean of its divisors is an integer number (13200082038).

Almost surely, 2^{2108156539392} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2108156539392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3168019689120).

2108156539392 is an abundant number, since it is smaller than the sum of its proper divisors (4227882838848).

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

2108156539392 is a wasteful number, since it uses less digits than its factorization.

2108156539392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 2108156539392 in words is "two trillion, one hundred eight billion, one hundred fifty-six million, five hundred thirty-nine thousand, three hundred ninety-two".