8147653779 has 8 divisors (see below), whose sum is σ = 10965067200. Its totient is φ = 5381004776.

The previous prime is 8147653769. The next prime is 8147653799. The reversal of 8147653779 is 9773567418.

It is a happy number.

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 8147653779 - 2⁴ = 8147653763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8147653769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12690729 + ... + 12691370.

It is an arithmetic number, because the mean of its divisors is an integer number (1370633400).

Almost surely, 2^8147653779 is an apocalyptic number.

8147653779 is a deficient number, since it is larger than the sum of its proper divisors (2817413421).

8147653779 is a wasteful number, since it uses less digits than its factorization.

8147653779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25382209.

The product of its digits is 8890560, while the sum is 57.

The square root of 8147653779 is about 90264.3549747075. The cubic root of 8147653779 is about 2012.2295482355.

The spelling of 8147653779 in words is "eight billion, one hundred forty-seven million, six hundred fifty-three thousand, seven hundred seventy-nine".