8193422574 has 72 divisors (see below), whose sum is σ = 18423518256. Its totient is φ = 2631528000.

The previous prime is 8193422557. The next prime is 8193422579. The reversal of 8193422574 is 4752243918.

It is a super-2 number, since 2×8193422574² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8193422579) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4548474 + ... + 4550274.

It is an arithmetic number, because the mean of its divisors is an integer number (255882198).

Almost surely, 2^8193422574 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8193422574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9211759128).

8193422574 is an abundant number, since it is smaller than the sum of its proper divisors (10230095682).

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

8193422574 is a wasteful number, since it uses less digits than its factorization.

8193422574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134 (or 2100 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 8193422574 is about 90517.5263360638. The cubic root of 8193422574 is about 2015.9903612894.

The spelling of 8193422574 in words is "eight billion, one hundred ninety-three million, four hundred twenty-two thousand, five hundred seventy-four".