89767421280 has 576 divisors, whose sum is σ = 348147072000. Its totient is φ = 20939821056.

The previous prime is 89767421273. The next prime is 89767421281. The reversal of 89767421280 is 8212476798.

It is a happy number.

89767421280 is a `hidden beast` number, since 89 + 7 + 67 + 421 + 2 + 80 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89767421281) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18246661 + ... + 18251579.

It is an arithmetic number, because the mean of its divisors is an integer number (604422000).

Almost surely, 2^89767421280 is an apocalyptic number.

89767421280 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 89767421280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174073536000).

89767421280 is an abundant number, since it is smaller than the sum of its proper divisors (258379650720).

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

89767421280 is a wasteful number, since it uses less digits than its factorization.

89767421280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011 (or 5000 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 89767421280 in words is "eighty-nine billion, seven hundred sixty-seven million, four hundred twenty-one thousand, two hundred eighty".