2646794879 has 8 divisors (see below), whose sum is σ = 2662308000. Its totient is φ = 2631303136.

The previous prime is 2646794873. The next prime is 2646794903. The reversal of 2646794879 is 9784976462.

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 2646794879 - 2⁴ = 2646794863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646794873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289622 + ... + 298620.

It is an arithmetic number, because the mean of its divisors is an integer number (332788500).

Almost surely, 2^2646794879 is an apocalyptic number.

2646794879 is a deficient number, since it is larger than the sum of its proper divisors (15513121).

2646794879 is a wasteful number, since it uses less digits than its factorization.

2646794879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10689.

The product of its digits is 36578304, while the sum is 62.

The square root of 2646794879 is about 51447.0103990504. The cubic root of 2646794879 is about 1383.2693748465.

The spelling of 2646794879 in words is "two billion, six hundred forty-six million, seven hundred ninety-four thousand, eight hundred seventy-nine".