2136991047 has 16 divisors (see below), whose sum is σ = 3007810560. Its totient is φ = 1345842432.

The previous prime is 2136991039. The next prime is 2136991049. The reversal of 2136991047 is 7401996312.

It is not a de Polignac number, because 2136991047 - 2³ = 2136991039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136991049) 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, 32983 + ... + 73224.

It is an arithmetic number, because the mean of its divisors is an integer number (187988160).

Almost surely, 2^2136991047 is an apocalyptic number.

2136991047 is a deficient number, since it is larger than the sum of its proper divisors (870819513).

2136991047 is a wasteful number, since it uses less digits than its factorization.

2136991047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106582.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 2136991047 is about 46227.6004893181. The cubic root of 2136991047 is about 1288.0544851683.

The spelling of 2136991047 in words is "two billion, one hundred thirty-six million, nine hundred ninety-one thousand, forty-seven".