2111492949 has 16 divisors (see below), whose sum is σ = 2892772800. Its totient is φ = 1368973440.

The previous prime is 2111492923. The next prime is 2111493011. The reversal of 2111492949 is 9492941112.

It is not a de Polignac number, because 2111492949 - 2¹⁵ = 2111460181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111492949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111492549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384777 + ... + 390225.

It is an arithmetic number, because the mean of its divisors is an integer number (180798300).

Almost surely, 2^2111492949 is an apocalyptic number.

It is an amenable number.

2111492949 is a deficient number, since it is larger than the sum of its proper divisors (781279851).

2111492949 is a wasteful number, since it uses less digits than its factorization.

2111492949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8980.

The product of its digits is 46656, while the sum is 42.

The square root of 2111492949 is about 45950.9842005588. The cubic root of 2111492949 is about 1282.9110480551.

The spelling of 2111492949 in words is "two billion, one hundred eleven million, four hundred ninety-two thousand, nine hundred forty-nine".