2646420801 has 4 divisors (see below), whose sum is σ = 3528561072. Its totient is φ = 1764280532.

The previous prime is 2646420797. The next prime is 2646420827. The reversal of 2646420801 is 1080246462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2646420801 - 2² = 2646420797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2646420901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441070131 + ... + 441070136.

It is an arithmetic number, because the mean of its divisors is an integer number (882140268).

Almost surely, 2^2646420801 is an apocalyptic number.

It is an amenable number.

2646420801 is a deficient number, since it is larger than the sum of its proper divisors (882140271).

2646420801 is an equidigital number, since it uses as much as digits as its factorization.

2646420801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882140270.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 2646420801 is about 51443.3747046206. The cubic root of 2646420801 is about 1383.2042048271.

The spelling of 2646420801 in words is "two billion, six hundred forty-six million, four hundred twenty thousand, eight hundred one".