981651468 has 48 divisors (see below), whose sum is σ = 2771725824. Its totient is φ = 263973120.

The previous prime is 981651427. The next prime is 981651521. The reversal of 981651468 is 864156189.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342288 + ... + 345143.

It is an arithmetic number, because the mean of its divisors is an integer number (57744288).

Almost surely, 2^981651468 is an apocalyptic number.

It is an amenable number.

981651468 is an abundant number, since it is smaller than the sum of its proper divisors (1790074356).

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

981651468 is a wasteful number, since it uses less digits than its factorization.

981651468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687462 (or 687460 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The square root of 981651468 is about 31331.3176869406. The cubic root of 981651468 is about 993.8460289939.

The spelling of 981651468 in words is "nine hundred eighty-one million, six hundred fifty-one thousand, four hundred sixty-eight".