2148670771 has 32 divisors (see below), whose sum is σ = 2453745728. Its totient is φ = 1868106240.

The previous prime is 2148670739. The next prime is 2148670781. The reversal of 2148670771 is 1770768412.

It is not a de Polignac number, because 2148670771 - 2⁵ = 2148670739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148670781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1965301 + ... + 1966393.

It is an arithmetic number, because the mean of its divisors is an integer number (76679554).

Almost surely, 2^2148670771 is an apocalyptic number.

2148670771 is a deficient number, since it is larger than the sum of its proper divisors (305074957).

2148670771 is a wasteful number, since it uses less digits than its factorization.

2148670771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 2148670771 is about 46353.7568164653. The cubic root of 2148670771 is about 1290.3968434332.

The spelling of 2148670771 in words is "two billion, one hundred forty-eight million, six hundred seventy thousand, seven hundred seventy-one".