2649755304291 has 32 divisors (see below), whose sum is σ = 3784920410880. Its totient is φ = 1644027840000.

The previous prime is 2649755304289. The next prime is 2649755304331. The reversal of 2649755304291 is 1924035579462.

It is not a de Polignac number, because 2649755304291 - 2¹ = 2649755304289 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (2649755304281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224130 + ... + 2312951.

It is an arithmetic number, because the mean of its divisors is an integer number (118278762840).

Almost surely, 2^{2649755304291} is an apocalyptic number.

2649755304291 is a deficient number, since it is larger than the sum of its proper divisors (1135165106589).

2649755304291 is a wasteful number, since it uses less digits than its factorization.

2649755304291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537427.

The product of its (nonzero) digits is 16329600, while the sum is 57.

The spelling of 2649755304291 in words is "two trillion, six hundred forty-nine billion, seven hundred fifty-five million, three hundred four thousand, two hundred ninety-one".