2254478771 has 4 divisors (see below), whose sum is σ = 2256060072. Its totient is φ = 2252897472.

The previous prime is 2254478747. The next prime is 2254478789. The reversal of 2254478771 is 1778744522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2254478771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2254478701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788510 + ... + 791363.

It is an arithmetic number, because the mean of its divisors is an integer number (564015018).

Almost surely, 2^2254478771 is an apocalyptic number.

2254478771 is a deficient number, since it is larger than the sum of its proper divisors (1581301).

2254478771 is a wasteful number, since it uses less digits than its factorization.

2254478771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581300.

The product of its digits is 878080, while the sum is 47.

The square root of 2254478771 is about 47481.3518236370. The cubic root of 2254478771 is about 1311.2395801369.

The spelling of 2254478771 in words is "two billion, two hundred fifty-four million, four hundred seventy-eight thousand, seven hundred seventy-one".