8198722478592 has 400 divisors, whose sum is σ = 25224445275480. Its totient is φ = 2649308332032.

The previous prime is 8198722478579. The next prime is 8198722478593. The reversal of 8198722478592 is 2958742278918.

8198722478592 is a `hidden beast` number, since 8 + 1 + 9 + 8 + 7 + 2 + 24 + 7 + 8 + 592 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7723152251136 + 475570227456 = 2779056^2 + 689616^2 .

It is a super-3 number, since 3×8198722478592³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 8198722478592.

It is not an unprimeable number, because it can be changed into a prime (8198722478593) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 425036884 + ... + 425056172.

Almost surely, 2^{8198722478592} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8198722478592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12612222637740).

8198722478592 is an abundant number, since it is smaller than the sum of its proper divisors (17025722796888).

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

8198722478592 is a wasteful number, since it uses less digits than its factorization.

8198722478592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19633 (or 19608 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 72.

The spelling of 8198722478592 in words is "eight trillion, one hundred ninety-eight billion, seven hundred twenty-two million, four hundred seventy-eight thousand, five hundred ninety-two".