89610537442 has 4 divisors (see below), whose sum is σ = 134415806166. Its totient is φ = 44805268720.

The previous prime is 89610537437. The next prime is 89610537449. The reversal of 89610537442 is 24473501698.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50359399281 + 39251138161 = 224409^2 + 198119^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (89610537449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22402634359 + ... + 22402634362.

It is a 1-persistent number, because it is pandigital, but 2⋅89610537442 = 179221074884 is not.

Almost surely, 2^89610537442 is an apocalyptic number.

89610537442 is a deficient number, since it is larger than the sum of its proper divisors (44805268724).

89610537442 is a wasteful number, since it uses less digits than its factorization.

89610537442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44805268723.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 89610537442 in words is "eighty-nine billion, six hundred ten million, five hundred thirty-seven thousand, four hundred forty-two".