168986039402 has 8 divisors (see below), whose sum is σ = 257049186912. Its totient is φ = 83302977100.

The previous prime is 168986039393. The next prime is 168986039429. The reversal of 168986039402 is 204930689861.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595021124 + ... + 595021407.

It is an arithmetic number, because the mean of its divisors is an integer number (32131148364).

Almost surely, 2^168986039402 is an apocalyptic number.

168986039402 is a deficient number, since it is larger than the sum of its proper divisors (88063147510).

168986039402 is a wasteful number, since it uses less digits than its factorization.

168986039402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190042604.

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 168986039402 in words is "one hundred sixty-eight billion, nine hundred eighty-six million, thirty-nine thousand, four hundred two".