8197425454 has 4 divisors (see below), whose sum is σ = 12296138184. Its totient is φ = 4098712726.

The previous prime is 8197425437. The next prime is 8197425463. The reversal of 8197425454 is 4545247918.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4545247918 = 2 ⋅2272623959.

It is a super-2 number, since 2×8197425454² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 8197425398 and 8197425407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2049356362 + ... + 2049356365.

It is an arithmetic number, because the mean of its divisors is an integer number (3074034546).

Almost surely, 2^8197425454 is an apocalyptic number.

8197425454 is a deficient number, since it is larger than the sum of its proper divisors (4098712730).

8197425454 is a wasteful number, since it uses less digits than its factorization.

8197425454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4098712729.

The product of its digits is 1612800, while the sum is 49.

The square root of 8197425454 is about 90539.6347132017. The cubic root of 8197425454 is about 2016.3186105090.

The spelling of 8197425454 in words is "eight billion, one hundred ninety-seven million, four hundred twenty-five thousand, four hundred fifty-four".