89404579572 has 384 divisors, whose sum is σ = 290954280960. Its totient is φ = 20629002240.

The previous prime is 89404579543. The next prime is 89404579577. The reversal of 89404579572 is 27597540498.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89404579577) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 138182953 + ... + 138183599.

It is an arithmetic number, because the mean of its divisors is an integer number (757693440).

Almost surely, 2^89404579572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89404579572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145477140480).

89404579572 is an abundant number, since it is smaller than the sum of its proper divisors (201549701388).

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

89404579572 is a wasteful number, since it uses less digits than its factorization.

89404579572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 89404579572 in words is "eighty-nine billion, four hundred four million, five hundred seventy-nine thousand, five hundred seventy-two".