2111949694 has 8 divisors (see below), whose sum is σ = 3170315808. Its totient is φ = 1055177760.

The previous prime is 2111949689. The next prime is 2111949703. The reversal of 2111949694 is 4969491112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395227 + ... + 400534.

It is an arithmetic number, because the mean of its divisors is an integer number (396289476).

Almost surely, 2^2111949694 is an apocalyptic number.

2111949694 is a deficient number, since it is larger than the sum of its proper divisors (1058366114).

2111949694 is a wasteful number, since it uses less digits than its factorization.

2111949694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797090.

The product of its digits is 139968, while the sum is 46.

The square root of 2111949694 is about 45955.9538471350. The cubic root of 2111949694 is about 1283.0035451610.

The spelling of 2111949694 in words is "two billion, one hundred eleven million, nine hundred forty-nine thousand, six hundred ninety-four".