89138581488 has 160 divisors (see below), whose sum is σ = 279710668800. Its totient is φ = 26954611200.

The previous prime is 89138581457. The next prime is 89138581559. The reversal of 89138581488 is 88418583198.

89138581488 is a `hidden beast` number, since 8 + 9 + 1 + 3 + 8 + 581 + 48 + 8 = 666.

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 31 ways as a sum of consecutive naturals, for example, 2256628 + ... + 2295788.

It is an arithmetic number, because the mean of its divisors is an integer number (1748191680).

Almost surely, 2^89138581488 is an apocalyptic number.

89138581488 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89138581488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139855334400).

89138581488 is an abundant number, since it is smaller than the sum of its proper divisors (190572087312).

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

89138581488 is a wasteful number, since it uses less digits than its factorization.

89138581488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39668 (or 39656 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 63.

The spelling of 89138581488 in words is "eighty-nine billion, one hundred thirty-eight million, five hundred eighty-one thousand, four hundred eighty-eight".