89215447680 has 384 divisors, whose sum is σ = 322069063680. Its totient is φ = 23598231552.

The previous prime is 89215447669. The next prime is 89215447691. The reversal of 89215447680 is 8674451298.

It is a happy number.

89215447680 is a `hidden beast` number, since 8 + 9 + 21 + 544 + 76 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (89215447669) and next prime (89215447691).

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×89215447680² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19748782 + ... + 19753298.

It is an arithmetic number, because the mean of its divisors is an integer number (838721520).

Almost surely, 2^89215447680 is an apocalyptic number.

89215447680 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 89215447680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161034531840).

89215447680 is an abundant number, since it is smaller than the sum of its proper divisors (232853616000).

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

89215447680 is a wasteful number, since it uses less digits than its factorization.

89215447680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4678 (or 4654 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 89215447680 in words is "eighty-nine billion, two hundred fifteen million, four hundred forty-seven thousand, six hundred eighty".