2111719444 has 6 divisors (see below), whose sum is σ = 3695509034. Its totient is φ = 1055859720.

The previous prime is 2111719429. The next prime is 2111719459. The reversal of 2111719444 is 4449171112.

It is an interprime number because it is at equal distance from previous prime (2111719429) and next prime (2111719459).

It can be written as a sum of positive squares in only one way, i.e., 1930547844 + 181171600 = 43938^2 + 13460^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263964927 + ... + 263964934.

Almost surely, 2^2111719444 is an apocalyptic number.

It is an amenable number.

2111719444 is a deficient number, since it is larger than the sum of its proper divisors (1583789590).

2111719444 is a wasteful number, since it uses less digits than its factorization.

2111719444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527929865 (or 527929863 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 2111719444 is about 45953.4486627500. The cubic root of 2111719444 is about 1282.9569180557.

The spelling of 2111719444 in words is "two billion, one hundred eleven million, seven hundred nineteen thousand, four hundred forty-four".