2778710245 has 8 divisors (see below), whose sum is σ = 3344528160. Its totient is φ = 2216250960.

The previous prime is 2778710237. The next prime is 2778710251. The reversal of 2778710245 is 5420178772.

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

It is not a de Polignac number, because 2778710245 - 2³ = 2778710237 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 837835 + ... + 841144.

It is an arithmetic number, because the mean of its divisors is an integer number (418066020).

Almost surely, 2^2778710245 is an apocalyptic number.

It is an amenable number.

2778710245 is a deficient number, since it is larger than the sum of its proper divisors (565817915).

2778710245 is a wasteful number, since it uses less digits than its factorization.

2778710245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679315.

The product of its (nonzero) digits is 219520, while the sum is 43.

The square root of 2778710245 is about 52713.4730880066. The cubic root of 2778710245 is about 1405.8783859018.

The spelling of 2778710245 in words is "two billion, seven hundred seventy-eight million, seven hundred ten thousand, two hundred forty-five".