2649279590191 has 8 divisors (see below), whose sum is σ = 2853834663680. Its totient is φ = 2444833707552.

The previous prime is 2649279590189. The next prime is 2649279590203. The reversal of 2649279590191 is 1910959729462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2649279590191 - 2¹ = 2649279590189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649279590141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27247311 + ... + 27344368.

It is an arithmetic number, because the mean of its divisors is an integer number (356729332960).

Almost surely, 2^{2649279590191} is an apocalyptic number.

2649279590191 is a deficient number, since it is larger than the sum of its proper divisors (204555073489).

2649279590191 is a wasteful number, since it uses less digits than its factorization.

2649279590191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54595425.

The product of its (nonzero) digits is 22044960, while the sum is 64.

It can be divided in two parts, 26492795 and 90191, that added together give a triangular number (26582986 = T₇₂₉₁).

The spelling of 2649279590191 in words is "two trillion, six hundred forty-nine billion, two hundred seventy-nine million, five hundred ninety thousand, one hundred ninety-one".