89225242178 has 6 divisors (see below), whose sum is σ = 133838496921. Its totient is φ = 44612409872.

The previous prime is 89225242177. The next prime is 89225242187. The reversal of 89225242178 is 87124252298.

It can be written as a sum of positive squares in 2 ways, for example, as 86220338689 + 3004903489 = 293633^2 + 54817^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=211217.

It is a super-2 number, since 2×89225242178² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89225242177) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 316826 + ... + 528042.

Almost surely, 2^89225242178 is an apocalyptic number.

89225242178 is a deficient number, since it is larger than the sum of its proper divisors (44613254743).

89225242178 is an frugal number, since it uses more digits than its factorization.

89225242178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422436 (or 211219 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

Multiplying 89225242178 by its sum of digits (50), we get a square (4461262108900 = 2112170²).

The spelling of 89225242178 in words is "eighty-nine billion, two hundred twenty-five million, two hundred forty-two thousand, one hundred seventy-eight".