89487805573 has 2 divisors, whose sum is σ = 89487805574. Its totient is φ = 89487805572.

The previous prime is 89487805567. The next prime is 89487805591. The reversal of 89487805573 is 37550878498.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75340368324 + 14147437249 = 274482^2 + 118943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89487805573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89487805073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44743902786 + 44743902787.

It is an arithmetic number, because the mean of its divisors is an integer number (44743902787).

Almost surely, 2^89487805573 is an apocalyptic number.

It is an amenable number.

89487805573 is a deficient number, since it is larger than the sum of its proper divisors (1).

89487805573 is an equidigital number, since it uses as much as digits as its factorization.

89487805573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67737600, while the sum is 64.

The spelling of 89487805573 in words is "eighty-nine billion, four hundred eighty-seven million, eight hundred five thousand, five hundred seventy-three".