981550532194 has 16 divisors (see below), whose sum is σ = 1591703568000. Its totient is φ = 452378907504.

The previous prime is 981550532159. The next prime is 981550532197. The reversal of 981550532194 is 491235055189.

It is not an unprimeable number, because it can be changed into a prime (981550532197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349056394 + ... + 349059205.

It is an arithmetic number, because the mean of its divisors is an integer number (99481473000).

Almost surely, 2^981550532194 is an apocalyptic number.

981550532194 is a deficient number, since it is larger than the sum of its proper divisors (610153035806).

981550532194 is a wasteful number, since it uses less digits than its factorization.

981550532194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698115657.

The product of its (nonzero) digits is 1944000, while the sum is 52.

The spelling of 981550532194 in words is "nine hundred eighty-one billion, five hundred fifty million, five hundred thirty-two thousand, one hundred ninety-four".