8781623382145 has 16 divisors (see below), whose sum is σ = 10589082354432. Its totient is φ = 6991274424960.

The previous prime is 8781623382071. The next prime is 8781623382157. The reversal of 8781623382145 is 5412833261878.

It is not a de Polignac number, because 8781623382145 - 2⁷ = 8781623382017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8781623382145.

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, 3000777 + ... + 5154406.

It is an arithmetic number, because the mean of its divisors is an integer number (661817647152).

Almost surely, 2^{8781623382145} is an apocalyptic number.

It is an amenable number.

8781623382145 is a deficient number, since it is larger than the sum of its proper divisors (1807458972287).

8781623382145 is a wasteful number, since it uses less digits than its factorization.

8781623382145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8156232.

The product of its digits is 15482880, while the sum is 58.

The spelling of 8781623382145 in words is "eight trillion, seven hundred eighty-one billion, six hundred twenty-three million, three hundred eighty-two thousand, one hundred forty-five".