2778225026 has 16 divisors (see below), whose sum is σ = 4294563840. Its totient is φ = 1347109920.

The previous prime is 2778225001. The next prime is 2778225041. The reversal of 2778225026 is 6205228772.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87746 + ... + 115133.

It is an arithmetic number, because the mean of its divisors is an integer number (268410240).

Almost surely, 2^2778225026 is an apocalyptic number.

2778225026 is a deficient number, since it is larger than the sum of its proper divisors (1516338814).

2778225026 is a wasteful number, since it uses less digits than its factorization.

2778225026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203089.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 2778225026 is about 52708.8704678823. The cubic root of 2778225026 is about 1405.7965495395.

The spelling of 2778225026 in words is "two billion, seven hundred seventy-eight million, two hundred twenty-five thousand, twenty-six".