2272729778 has 8 divisors (see below), whose sum is σ = 3719012400. Its totient is φ = 1033058980.

The previous prime is 2272729769. The next prime is 2272729793. The reversal of 2272729778 is 8779272722.

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

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 3 ways as a sum of consecutive naturals, for example, 51652928 + ... + 51652971.

It is an arithmetic number, because the mean of its divisors is an integer number (464876550).

Almost surely, 2^2272729778 is an apocalyptic number.

2272729778 is a deficient number, since it is larger than the sum of its proper divisors (1446282622).

2272729778 is a wasteful number, since it uses less digits than its factorization.

2272729778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103305912.

The product of its digits is 2765952, while the sum is 53.

The square root of 2272729778 is about 47673.1557377944. The cubic root of 2272729778 is about 1314.7684302628.

The spelling of 2272729778 in words is "two billion, two hundred seventy-two million, seven hundred twenty-nine thousand, seven hundred seventy-eight".