8179143947 has 8 divisors (see below), whose sum is σ = 8952708240. Its totient is φ = 7426208160.

The previous prime is 8179143941. The next prime is 8179143979. The reversal of 8179143947 is 7493419718.

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 8179143947 - 2⁸ = 8179143691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8179143941) 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, 5156297 + ... + 5157882.

It is an arithmetic number, because the mean of its divisors is an integer number (1119088530).

Almost surely, 2^8179143947 is an apocalyptic number.

8179143947 is a deficient number, since it is larger than the sum of its proper divisors (773564293).

8179143947 is a wasteful number, since it uses less digits than its factorization.

8179143947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10314253.

The product of its digits is 1524096, while the sum is 53.

The square root of 8179143947 is about 90438.6197760669. The cubic root of 8179143947 is about 2014.8185956919.

The spelling of 8179143947 in words is "eight billion, one hundred seventy-nine million, one hundred forty-three thousand, nine hundred forty-seven".