6619142879 has 8 divisors (see below), whose sum is σ = 7081741680. Its totient is φ = 6167966400.

The previous prime is 6619142821. The next prime is 6619142921. The reversal of 6619142879 is 9782419166.

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 6619142879 - 2¹⁶ = 6619077343 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 6619142879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6619142479) 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, 2854382 + ... + 2856699.

It is an arithmetic number, because the mean of its divisors is an integer number (885217710).

Almost surely, 2^6619142879 is an apocalyptic number.

6619142879 is a deficient number, since it is larger than the sum of its proper divisors (462598801).

6619142879 is a wasteful number, since it uses less digits than its factorization.

6619142879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711161.

The product of its digits is 1306368, while the sum is 53.

The square root of 6619142879 is about 81358.1150162662. The cubic root of 6619142879 is about 1877.5892291353.

The spelling of 6619142879 in words is "six billion, six hundred nineteen million, one hundred forty-two thousand, eight hundred seventy-nine".