16842602886978 has 64 divisors (see below), whose sum is σ = 37402813808640. Its totient is φ = 5012953224000.

The previous prime is 16842602886959. The next prime is 16842602887009. The reversal of 16842602886978 is 87968820624861.

It is a super-3 number, since 3×16842602886978³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2603076 + ... + 6360912.

It is an arithmetic number, because the mean of its divisors is an integer number (584418965760).

Almost surely, 2^{16842602886978} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16842602886978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18701406904320).

16842602886978 is an abundant number, since it is smaller than the sum of its proper divisors (20560210921662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16842602886978 is a wasteful number, since it uses less digits than its factorization.

16842602886978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3759063.

The product of its (nonzero) digits is 891813888, while the sum is 75.

The spelling of 16842602886978 in words is "sixteen trillion, eight hundred forty-two billion, six hundred two million, eight hundred eighty-six thousand, nine hundred seventy-eight".