2278204574645 has 8 divisors (see below), whose sum is σ = 2733869369760. Its totient is φ = 1822547739600.

The previous prime is 2278204574623. The next prime is 2278204574647. The reversal of 2278204574645 is 5464754028722.

2278204574645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2278204574645 - 2¹² = 2278204570549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278204574647) 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, 1341131 + ... + 2520920.

It is an arithmetic number, because the mean of its divisors is an integer number (341733671220).

Almost surely, 2^{2278204574645} is an apocalyptic number.

It is an amenable number.

2278204574645 is a deficient number, since it is larger than the sum of its proper divisors (455664795115).

2278204574645 is a wasteful number, since it uses less digits than its factorization.

2278204574645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980035.

The product of its (nonzero) digits is 30105600, while the sum is 56.

The spelling of 2278204574645 in words is "two trillion, two hundred seventy-eight billion, two hundred four million, five hundred seventy-four thousand, six hundred forty-five".