8146820748139 has 8 divisors (see below), whose sum is σ = 8212740252480. Its totient is φ = 8081166514176.

The previous prime is 8146820748037. The next prime is 8146820748173. The reversal of 8146820748139 is 9318470286418.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8146820748139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8146820748179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66255924 + ... + 66378769.

It is an arithmetic number, because the mean of its divisors is an integer number (1026592531560).

Almost surely, 2^{8146820748139} is an apocalyptic number.

8146820748139 is a deficient number, since it is larger than the sum of its proper divisors (65919504341).

8146820748139 is a wasteful number, since it uses less digits than its factorization.

8146820748139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132635189.

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 8146820748139 in words is "eight trillion, one hundred forty-six billion, eight hundred twenty million, seven hundred forty-eight thousand, one hundred thirty-nine".