8101816474 has 4 divisors (see below), whose sum is σ = 12152724714. Its totient is φ = 4050908236.

The previous prime is 8101816423. The next prime is 8101816517. The reversal of 8101816474 is 4746181018.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4746181018 = 2 ⋅2373090509.

It can be written as a sum of positive squares in only one way, i.e., 7016575225 + 1085241249 = 83765^2 + 32943^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025454117 + ... + 2025454120.

Almost surely, 2^8101816474 is an apocalyptic number.

8101816474 is a deficient number, since it is larger than the sum of its proper divisors (4050908240).

8101816474 is a wasteful number, since it uses less digits than its factorization.

8101816474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050908239.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 8101816474 is about 90010.0909565144. The cubic root of 8101816474 is about 2008.4489634145.

The spelling of 8101816474 in words is "eight billion, one hundred one million, eight hundred sixteen thousand, four hundred seventy-four".