8695561867398 has 48 divisors (see below), whose sum is σ = 21532731567360. Its totient is φ = 2484346545648.

The previous prime is 8695561867397. The next prime is 8695561867411. The reversal of 8695561867398 is 8937681655968.

8695561867398 is a `hidden beast` number, since 8 + 6 + 95 + 5 + 61 + 86 + 7 + 398 = 666.

It is a super-2 number, since 2×8695561867398² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8695561867393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1796343 + ... + 4540701.

It is an arithmetic number, because the mean of its divisors is an integer number (448598574320).

Almost surely, 2^{8695561867398} is an apocalyptic number.

8695561867398 is an abundant number, since it is smaller than the sum of its proper divisors (12837169699962).

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

8695561867398 is a wasteful number, since it uses less digits than its factorization.

8695561867398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769521 (or 2769518 counting only the distinct ones).

The product of its digits is 4702924800, while the sum is 81.

The spelling of 8695561867398 in words is "eight trillion, six hundred ninety-five billion, five hundred sixty-one million, eight hundred sixty-seven thousand, three hundred ninety-eight".