8198475815 has 8 divisors (see below), whose sum is σ = 9839127840. Its totient is φ = 6558142752.

The previous prime is 8198475809. The next prime is 8198475821. The reversal of 8198475815 is 5185748918.

It is an interprime number because it is at equal distance from previous prime (8198475809) and next prime (8198475821).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8198475815 - 2⁸ = 8198475559 is a prime.

It is a super-4 number, since 4×8198475815⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18980 + ... + 129449.

It is an arithmetic number, because the mean of its divisors is an integer number (1229890980).

Almost surely, 2^8198475815 is an apocalyptic number.

8198475815 is a deficient number, since it is larger than the sum of its proper divisors (1640652025).

8198475815 is a wasteful number, since it uses less digits than its factorization.

8198475815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159481.

The product of its digits is 3225600, while the sum is 56.

The square root of 8198475815 is about 90545.4350864802. The cubic root of 8198475815 is about 2016.4047258386.

The spelling of 8198475815 in words is "eight billion, one hundred ninety-eight million, four hundred seventy-five thousand, eight hundred fifteen".