979478209843 has 8 divisors (see below), whose sum is σ = 1119571071840. Its totient is φ = 839427198720.

The previous prime is 979478209819. The next prime is 979478209861. The reversal of 979478209843 is 348902874979.

979478209843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 979478209843 - 2⁹ = 979478209331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979478209543) 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, 10412548 + ... + 10506193.

It is an arithmetic number, because the mean of its divisors is an integer number (139946383980).

Almost surely, 2^979478209843 is an apocalyptic number.

979478209843 is a deficient number, since it is larger than the sum of its proper divisors (140092861997).

979478209843 is a wasteful number, since it uses less digits than its factorization.

979478209843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20925437.

The product of its (nonzero) digits is 219469824, while the sum is 70.

The spelling of 979478209843 in words is "nine hundred seventy-nine billion, four hundred seventy-eight million, two hundred nine thousand, eight hundred forty-three".