8118040531387 has 4 divisors (see below), whose sum is σ = 8118499636360. Its totient is φ = 8117581426416.

The previous prime is 8118040531357. The next prime is 8118040531397. The reversal of 8118040531387 is 7831350408118.

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

It is a cyclic number.

It is not a de Polignac number, because 8118040531387 - 2²⁷ = 8117906313659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8118040531387.

It is not an unprimeable number, because it can be changed into a prime (8118040531327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229525962 + ... + 229561327.

It is an arithmetic number, because the mean of its divisors is an integer number (2029624909090).

Almost surely, 2^{8118040531387} is an apocalyptic number.

8118040531387 is a deficient number, since it is larger than the sum of its proper divisors (459104973).

8118040531387 is a wasteful number, since it uses less digits than its factorization.

8118040531387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459104972.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 8118040531387 in words is "eight trillion, one hundred eighteen billion, forty million, five hundred thirty-one thousand, three hundred eighty-seven".