2278774878086 has 16 divisors (see below), whose sum is σ = 3906995124480. Its totient is φ = 976486828680.

The previous prime is 2278774878041. The next prime is 2278774878097. The reversal of 2278774878086 is 6808784778722.

It is a Curzon number.

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, 10806530 + ... + 11015381.

It is an arithmetic number, because the mean of its divisors is an integer number (244187195280).

Almost surely, 2^{2278774878086} is an apocalyptic number.

2278774878086 is a deficient number, since it is larger than the sum of its proper divisors (1628220246394).

2278774878086 is a wasteful number, since it uses less digits than its factorization.

2278774878086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21829379.

The product of its (nonzero) digits is 944111616, while the sum is 74.

The spelling of 2278774878086 in words is "two trillion, two hundred seventy-eight billion, seven hundred seventy-four million, eight hundred seventy-eight thousand, eighty-six".