978999000002 has 16 divisors (see below), whose sum is σ = 1545812268000. Its totient is φ = 463729056480.

The previous prime is 978998999941. The next prime is 978999000011. The reversal of 978999000002 is 200000999879.

It is a junction number, because it is equal to n+sod(n) for n = 978998999899 and 978998999908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2824877 + ... + 3152447.

It is an arithmetic number, because the mean of its divisors is an integer number (96613266750).

Almost surely, 2^978999000002 is an apocalyptic number.

978999000002 is a deficient number, since it is larger than the sum of its proper divisors (566813267998).

978999000002 is a wasteful number, since it uses less digits than its factorization.

978999000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406241.

The product of its (nonzero) digits is 734832, while the sum is 53.

The spelling of 978999000002 in words is "nine hundred seventy-eight billion, nine hundred ninety-nine million, two", and thus it is an aban number.