2049568247691 has 12 divisors (see below), whose sum is σ = 2962896343680. Its totient is φ = 1365267043440.

The previous prime is 2049568247663. The next prime is 2049568247707. The reversal of 2049568247691 is 1967428659402.

2049568247691 is a `hidden beast` number, since 2 + 0 + 4 + 9 + 568 + 2 + 4 + 7 + 69 + 1 = 666.

It is not a de Polignac number, because 2049568247691 - 2⁷ = 2049568247563 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2049568240691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92637355 + ... + 92659476.

It is an arithmetic number, because the mean of its divisors is an integer number (246908028640).

Almost surely, 2^{2049568247691} is an apocalyptic number.

2049568247691 is a deficient number, since it is larger than the sum of its proper divisors (913328095989).

2049568247691 is a wasteful number, since it uses less digits than its factorization.

2049568247691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185298066 (or 185298063 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 2049568247691 in words is "two trillion, forty-nine billion, five hundred sixty-eight million, two hundred forty-seven thousand, six hundred ninety-one".