2978847859 has 8 divisors (see below), whose sum is σ = 3239136992. Its totient is φ = 2723008320.

The previous prime is 2978847857. The next prime is 2978847871. The reversal of 2978847859 is 9587488792.

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 2978847859 - 2¹ = 2978847857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2978847794 and 2978847803.

It is not an unprimeable number, because it can be changed into a prime (2978847857) 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, 1111002 + ... + 1113679.

It is an arithmetic number, because the mean of its divisors is an integer number (404892124).

Almost surely, 2^2978847859 is an apocalyptic number.

2978847859 is a deficient number, since it is larger than the sum of its proper divisors (260289133).

2978847859 is a wasteful number, since it uses less digits than its factorization.

2978847859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224797.

The product of its digits is 81285120, while the sum is 67.

The square root of 2978847859 is about 54578.8224405767. The cubic root of 2978847859 is about 1438.8519429337.

The spelling of 2978847859 in words is "two billion, nine hundred seventy-eight million, eight hundred forty-seven thousand, eight hundred fifty-nine".