2170756772 has 18 divisors (see below), whose sum is σ = 3925327014. Its totient is φ = 1050364320.

The previous prime is 2170756751. The next prime is 2170756787. The reversal of 2170756772 is 2776570712.

It can be written as a sum of positive squares in only one way, i.e., 1840753216 + 330003556 = 42904^2 + 18166^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278513 + ... + 286200.

It is an arithmetic number, because the mean of its divisors is an integer number (218073723).

Almost surely, 2^2170756772 is an apocalyptic number.

It is an amenable number.

2170756772 is a deficient number, since it is larger than the sum of its proper divisors (1754570242).

2170756772 is a wasteful number, since it uses less digits than its factorization.

2170756772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564779 (or 564746 counting only the distinct ones).

The product of its (nonzero) digits is 288120, while the sum is 44.

The square root of 2170756772 is about 46591.3808767244. The cubic root of 2170756772 is about 1294.8030731696.

The spelling of 2170756772 in words is "two billion, one hundred seventy million, seven hundred fifty-six thousand, seven hundred seventy-two".