22778373265 has 16 divisors (see below), whose sum is σ = 28799417088. Its totient is φ = 17261171136.

The previous prime is 22778373221. The next prime is 22778373301. The reversal of 22778373265 is 56237387722.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22778373265 - 2⁹ = 22778372753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 949674 + ... + 973363.

It is an arithmetic number, because the mean of its divisors is an integer number (1799963568).

Almost surely, 2^22778373265 is an apocalyptic number.

It is an amenable number.

22778373265 is a deficient number, since it is larger than the sum of its proper divisors (6021043823).

22778373265 is a wasteful number, since it uses less digits than its factorization.

22778373265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923168.

The product of its digits is 5927040, while the sum is 52.

The spelling of 22778373265 in words is "twenty-two billion, seven hundred seventy-eight million, three hundred seventy-three thousand, two hundred sixty-five".