89144389551942 has 48 divisors (see below), whose sum is σ = 203315388822000. Its totient is φ = 28150358188032.

The previous prime is 89144389551887. The next prime is 89144389551947. The reversal of 89144389551942 is 24915598344198.

89144389551942 is a `hidden beast` number, since 8 + 9 + 1 + 4 + 4 + 389 + 55 + 194 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89144389551947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17134534 + ... + 21722822.

It is an arithmetic number, because the mean of its divisors is an integer number (4235737267125).

Almost surely, 2^{89144389551942} is an apocalyptic number.

89144389551942 is an abundant number, since it is smaller than the sum of its proper divisors (114170999270058).

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

89144389551942 is a wasteful number, since it uses less digits than its factorization.

89144389551942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645125 (or 4645122 counting only the distinct ones).

The product of its digits is 447897600, while the sum is 72.

The spelling of 89144389551942 in words is "eighty-nine trillion, one hundred forty-four billion, three hundred eighty-nine million, five hundred fifty-one thousand, nine hundred forty-two".