981788000258 has 32 divisors (see below), whose sum is σ = 1596211986096. Its totient is φ = 450208827648.

The previous prime is 981788000257. The next prime is 981788000273. The reversal of 981788000258 is 852000887189.

It can be written as a sum of positive squares in 8 ways, for example, as 777848149849 + 203939850409 = 881957^2 + 451597^2 .

It is not an unprimeable number, because it can be changed into a prime (981788000257) by changing a digit.

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, 6642416 + ... + 6788612.

Almost surely, 2^981788000258 is an apocalyptic number.

981788000258 is a deficient number, since it is larger than the sum of its proper divisors (614423985838).

981788000258 is a wasteful number, since it uses less digits than its factorization.

981788000258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147878.

The product of its (nonzero) digits is 2580480, while the sum is 56.

The spelling of 981788000258 in words is "nine hundred eighty-one billion, seven hundred eighty-eight million, two hundred fifty-eight", and thus it is an aban number.