22678784545 has 8 divisors (see below), whose sum is σ = 28092430080. Its totient is φ = 17557768560.

The previous prime is 22678784543. The next prime is 22678784581. The reversal of 22678784545 is 54548787622.

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

It is not a de Polignac number, because 22678784545 - 2¹ = 22678784543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22678784545.

It is not an unprimeable number, because it can be changed into a prime (22678784543) 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, 73157215 + ... + 73157524.

It is an arithmetic number, because the mean of its divisors is an integer number (3511553760).

Almost surely, 2^22678784545 is an apocalyptic number.

It is an amenable number.

22678784545 is a deficient number, since it is larger than the sum of its proper divisors (5413645535).

22678784545 is a wasteful number, since it uses less digits than its factorization.

22678784545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146314775.

The product of its digits is 30105600, while the sum is 58.

The spelling of 22678784545 in words is "twenty-two billion, six hundred seventy-eight million, seven hundred eighty-four thousand, five hundred forty-five".