2111797694 has 16 divisors (see below), whose sum is σ = 3182126688. Its totient is φ = 1051099392.

The previous prime is 2111797663. The next prime is 2111797729. The reversal of 2111797694 is 4967971112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498674 + ... + 502890.

It is an arithmetic number, because the mean of its divisors is an integer number (198882918).

Almost surely, 2^2111797694 is an apocalyptic number.

2111797694 is a deficient number, since it is larger than the sum of its proper divisors (1070328994).

2111797694 is a wasteful number, since it uses less digits than its factorization.

2111797694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5299.

The product of its digits is 190512, while the sum is 47.

The square root of 2111797694 is about 45954.3000599509. The cubic root of 2111797694 is about 1282.9727645640.

It can be divided in two parts, 21117 and 97694, that added together give a palindrome (118811).

The spelling of 2111797694 in words is "two billion, one hundred eleven million, seven hundred ninety-seven thousand, six hundred ninety-four".