22277747745 has 96 divisors (see below), whose sum is σ = 42838668288. Its totient is φ = 10619280000.

The previous prime is 22277747707. The next prime is 22277747749. The reversal of 22277747745 is 54774777222.

It is not a de Polignac number, because 22277747745 - 2¹⁴ = 22277731361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22277747691 and 22277747700.

It is not an unprimeable number, because it can be changed into a prime (22277747749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17255550 + ... + 17256840.

It is an arithmetic number, because the mean of its divisors is an integer number (446236128).

Almost surely, 2^22277747745 is an apocalyptic number.

It is an amenable number.

22277747745 is a deficient number, since it is larger than the sum of its proper divisors (20560920543).

22277747745 is a wasteful number, since it uses less digits than its factorization.

22277747745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875 (or 1872 counting only the distinct ones).

The product of its digits is 10756480, while the sum is 54.

The spelling of 22277747745 in words is "twenty-two billion, two hundred seventy-seven million, seven hundred forty-seven thousand, seven hundred forty-five".