8797124217978 has 24 divisors (see below), whose sum is σ = 19071019127316. Its totient is φ = 2930746536000.

The previous prime is 8797124217971. The next prime is 8797124218007.

8797124217978 is a `hidden beast` number, since 87 + 9 + 71 + 242 + 179 + 78 = 666.

8797124217978 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 8710248423969 + 86875794009 = 2951313^2 + 294747^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8797124217971) 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, 135650293 + ... + 135715128.

Almost surely, 2^{8797124217978} is an apocalyptic number.

8797124217978 is an abundant number, since it is smaller than the sum of its proper divisors (10273894909338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8797124217978 is a wasteful number, since it uses less digits than its factorization.

8797124217978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271367230 (or 271367227 counting only the distinct ones).

The product of its digits is 199148544, while the sum is 72.

The spelling of 8797124217978 in words is "eight trillion, seven hundred ninety-seven billion, one hundred twenty-four million, two hundred seventeen thousand, nine hundred seventy-eight".