981944000156 has 48 divisors (see below), whose sum is σ = 1975402054080. Its totient is φ = 418371502080.

The previous prime is 981944000153. The next prime is 981944000159. The reversal of 981944000156 is 651000449189.

It is an interprime number because it is at equal distance from previous prime (981944000153) and next prime (981944000159).

It is a self number, because there is not a number n which added to its sum of digits gives 981944000156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981944000153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4064480 + ... + 4299288.

It is an arithmetic number, because the mean of its divisors is an integer number (41154209460).

Almost surely, 2^981944000156 is an apocalyptic number.

It is an amenable number.

981944000156 is an abundant number, since it is smaller than the sum of its proper divisors (993458053924).

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

981944000156 is a wasteful number, since it uses less digits than its factorization.

981944000156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235694 (or 235692 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 981944000156 in words is "nine hundred eighty-one billion, nine hundred forty-four million, one hundred fifty-six", and thus it is an aban number.