6815147983 has 8 divisors (see below), whose sum is σ = 7789435520. Its totient is φ = 5841034200.

The previous prime is 6815147971. The next prime is 6815148023. The reversal of 6815147983 is 3897415186.

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 6815147983 - 2²¹ = 6813050831 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 6815147983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6815147903) 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, 55708 + ... + 129358.

It is an arithmetic number, because the mean of its divisors is an integer number (973679440).

Almost surely, 2^6815147983 is an apocalyptic number.

6815147983 is a deficient number, since it is larger than the sum of its proper divisors (974287537).

6815147983 is a wasteful number, since it uses less digits than its factorization.

6815147983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86877.

The product of its digits is 1451520, while the sum is 52.

The square root of 6815147983 is about 82553.9095561198. The cubic root of 6815147983 is about 1895.9422156802.

The spelling of 6815147983 in words is "six billion, eight hundred fifteen million, one hundred forty-seven thousand, nine hundred eighty-three".