89271943992 has 384 divisors, whose sum is σ = 331258464000. Its totient is φ = 21966577920.

The previous prime is 89271943979. The next prime is 89271943997. The reversal of 89271943992 is 29934917298.

89271943992 is a `hidden beast` number, since 8 + 92 + 71 + 94 + 399 + 2 = 666.

It is a super-2 number, since 2×89271943992² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89271943997) 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, 2191878 + ... + 2232234.

It is an arithmetic number, because the mean of its divisors is an integer number (862652250).

Almost surely, 2^89271943992 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 89271943992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165629232000).

89271943992 is an abundant number, since it is smaller than the sum of its proper divisors (241986520008).

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

89271943992 is a wasteful number, since it uses less digits than its factorization.

89271943992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40416 (or 40399 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The spelling of 89271943992 in words is "eighty-nine billion, two hundred seventy-one million, nine hundred forty-three thousand, nine hundred ninety-two".