989906316154 has 8 divisors (see below), whose sum is σ = 1696982256288. Its totient is φ = 424245564060.

The previous prime is 989906316149. The next prime is 989906316167. The reversal of 989906316154 is 451613609989.

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

It is a junction number, because it is equal to n+sod(n) for n = 989906316092 and 989906316101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35353796992 + ... + 35353797019.

It is an arithmetic number, because the mean of its divisors is an integer number (212122782036).

Almost surely, 2^989906316154 is an apocalyptic number.

989906316154 is a deficient number, since it is larger than the sum of its proper divisors (707075940134).

989906316154 is a wasteful number, since it uses less digits than its factorization.

989906316154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70707594020.

The product of its (nonzero) digits is 12597120, while the sum is 61.

The spelling of 989906316154 in words is "nine hundred eighty-nine billion, nine hundred six million, three hundred sixteen thousand, one hundred fifty-four".