8140873354 has 4 divisors (see below), whose sum is σ = 12211310034. Its totient is φ = 4070436676.

The previous prime is 8140873309. The next prime is 8140873357. The reversal of 8140873354 is 4533780418.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5872923225 + 2267950129 = 76635^2 + 47623^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8140873354.

It is not an unprimeable number, because it can be changed into a prime (8140873357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2035218337 + ... + 2035218340.

Almost surely, 2^8140873354 is an apocalyptic number.

8140873354 is a deficient number, since it is larger than the sum of its proper divisors (4070436680).

8140873354 is a wasteful number, since it uses less digits than its factorization.

8140873354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070436679.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 8140873354 is about 90226.7884499942. The cubic root of 8140873354 is about 2011.6712051669.

The spelling of 8140873354 in words is "eight billion, one hundred forty million, eight hundred seventy-three thousand, three hundred fifty-four".