89531037487 has 2 divisors, whose sum is σ = 89531037488. Its totient is φ = 89531037486.

The previous prime is 89531037361. The next prime is 89531037509. The reversal of 89531037487 is 78473013598.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89531037487 - 2¹¹ = 89531035439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89531017487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44765518743 + 44765518744.

It is an arithmetic number, because the mean of its divisors is an integer number (44765518744).

Almost surely, 2^89531037487 is an apocalyptic number.

89531037487 is a deficient number, since it is larger than the sum of its proper divisors (1).

89531037487 is an equidigital number, since it uses as much as digits as its factorization.

89531037487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 89531037487 in words is "eighty-nine billion, five hundred thirty-one million, thirty-seven thousand, four hundred eighty-seven".