2678280001 has 4 divisors (see below), whose sum is σ = 2682202032. Its totient is φ = 2674357972.

The previous prime is 2678279959. The next prime is 2678280019. The reversal of 2678280001 is 1000828762.

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 2678280001 - 2¹⁵ = 2678247233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2678280901) 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, 1959991 + ... + 1961356.

It is an arithmetic number, because the mean of its divisors is an integer number (670550508).

Almost surely, 2^2678280001 is an apocalyptic number.

It is an amenable number.

2678280001 is a deficient number, since it is larger than the sum of its proper divisors (3922031).

2678280001 is an equidigital number, since it uses as much as digits as its factorization.

2678280001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3922030.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 2678280001 is about 51752.1014162710. The cubic root of 2678280001 is about 1388.7326925333.

The spelling of 2678280001 in words is "two billion, six hundred seventy-eight million, two hundred eighty thousand, one".