89615351808 has 480 divisors, whose sum is σ = 279866879040. Its totient is φ = 28665446400.

The previous prime is 89615351773. The next prime is 89615351851. The reversal of 89615351808 is 80815351698.

89615351808 is a `hidden beast` number, since 8 + 9 + 615 + 3 + 5 + 18 + 0 + 8 = 666.

It is a super-2 number, since 2×89615351808² (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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1469104098 + ... + 1469104158.

It is an arithmetic number, because the mean of its divisors is an integer number (583055998).

Almost surely, 2^89615351808 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 89615351808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139933439520).

89615351808 is an abundant number, since it is smaller than the sum of its proper divisors (190251527232).

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

89615351808 is an frugal number, since it uses more digits than its factorization.

89615351808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 54.

The spelling of 89615351808 in words is "eighty-nine billion, six hundred fifteen million, three hundred fifty-one thousand, eight hundred eight".