2269196778 has 16 divisors (see below), whose sum is σ = 4602315456. Its totient is φ = 745745280.

The previous prime is 2269196773. The next prime is 2269196789. The reversal of 2269196778 is 8776919622.

It is not an unprimeable number, because it can be changed into a prime (2269196773) 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, 2662951 + ... + 2663802.

It is an arithmetic number, because the mean of its divisors is an integer number (287644716).

Almost surely, 2^2269196778 is an apocalyptic number.

2269196778 is an abundant number, since it is smaller than the sum of its proper divisors (2333118678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2269196778 is a wasteful number, since it uses less digits than its factorization.

2269196778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326829.

The product of its digits is 4572288, while the sum is 57.

The square root of 2269196778 is about 47636.0869299736. The cubic root of 2269196778 is about 1314.0867997492.

The spelling of 2269196778 in words is "two billion, two hundred sixty-nine million, one hundred ninety-six thousand, seven hundred seventy-eight".