89478774000 has 720 divisors, whose sum is σ = 392653410240. Its totient is φ = 18589824000.

The previous prime is 89478773977. The next prime is 89478774013. The reversal of 89478774000 is 47787498.

It is a tau number, because it is divible by the number of its divisors (720).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 15243066 + ... + 15248934.

Almost surely, 2^89478774000 is an apocalyptic number.

89478774000 is a gapful number since it is divisible by the number (80) 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 89478774000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196326705120).

89478774000 is an abundant number, since it is smaller than the sum of its proper divisors (303174636240).

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

89478774000 is a wasteful number, since it uses less digits than its factorization.

89478774000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5927 (or 5897 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The spelling of 89478774000 in words is "eighty-nine billion, four hundred seventy-eight million, seven hundred seventy-four thousand".