2156850820752 has 20 divisors (see below), whose sum is σ = 5571864620400. Its totient is φ = 718950273568.

The previous prime is 2156850820703. The next prime is 2156850820753. The reversal of 2156850820752 is 2570280586512.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2156850820695 and 2156850820704.

It is not an unprimeable number, because it can be changed into a prime (2156850820753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22467196002 + ... + 22467196097.

It is an arithmetic number, because the mean of its divisors is an integer number (278593231020).

Almost surely, 2^{2156850820752} is an apocalyptic number.

It is an amenable number.

2156850820752 is an abundant number, since it is smaller than the sum of its proper divisors (3415013799648).

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

2156850820752 is a wasteful number, since it uses less digits than its factorization.

2156850820752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44934392110 (or 44934392104 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 51.

The spelling of 2156850820752 in words is "two trillion, one hundred fifty-six billion, eight hundred fifty million, eight hundred twenty thousand, seven hundred fifty-two".