2691992149 has 12 divisors (see below), whose sum is σ = 3381677152. Its totient is φ = 2097655560.

The previous prime is 2691992137. The next prime is 2691992161. The reversal of 2691992149 is 9412991962.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2691992137) and next prime (2691992161).

It is not a de Polignac number, because 2691992149 - 2⁷ = 2691992021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2691992096 and 2691992105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691992189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1588287 + ... + 1589980.

Almost surely, 2^2691992149 is an apocalyptic number.

It is an amenable number.

2691992149 is a deficient number, since it is larger than the sum of its proper divisors (689685003).

2691992149 is a wasteful number, since it uses less digits than its factorization.

2691992149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178296 (or 3178285 counting only the distinct ones).

The product of its digits is 629856, while the sum is 52.

The square root of 2691992149 is about 51884.4114257838. The cubic root of 2691992149 is about 1391.0986516116.

The spelling of 2691992149 in words is "two billion, six hundred ninety-one million, nine hundred ninety-two thousand, one hundred forty-nine".