8978117222223 has 12 divisors (see below), whose sum is σ = 12968417802808. Its totient is φ = 5985399361680.

The previous prime is 8978117222171. The next prime is 8978117222233. The reversal of 8978117222223 is 3222227118798.

It is a happy number.

8978117222223 is a `hidden beast` number, since 89 + 7 + 8 + 117 + 222 + 223 = 666.

It is not a de Polignac number, because 8978117222223 - 2⁶ = 8978117222159 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 8978117222223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8978117222233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7159893 + ... + 8319873.

Almost surely, 2^{8978117222223} is an apocalyptic number.

8978117222223 is a deficient number, since it is larger than the sum of its proper divisors (3990300580585).

8978117222223 is a wasteful number, since it uses less digits than its factorization.

8978117222223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019974 (or 2019971 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The spelling of 8978117222223 in words is "eight trillion, nine hundred seventy-eight billion, one hundred seventeen million, two hundred twenty-two thousand, two hundred twenty-three".