89138559942 has 32 divisors (see below), whose sum is σ = 198191784960. Its totient is φ = 29696938920.

The previous prime is 89138559911. The next prime is 89138559959. The reversal of 89138559942 is 24995583198.

89138559942 is a `hidden beast` number, since 8 + 9 + 1 + 38 + 5 + 599 + 4 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 89138559942.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 340098 + ... + 542165.

It is an arithmetic number, because the mean of its divisors is an integer number (6193493280).

Almost surely, 2^89138559942 is an apocalyptic number.

89138559942 is an abundant number, since it is smaller than the sum of its proper divisors (109053225018).

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

89138559942 is a wasteful number, since it uses less digits than its factorization.

89138559942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884145 (or 884139 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 63.

The spelling of 89138559942 in words is "eighty-nine billion, one hundred thirty-eight million, five hundred fifty-nine thousand, nine hundred forty-two".