89212810087557 has 32 divisors (see below), whose sum is σ = 142367566812800. Its totient is φ = 54887177304576.

The previous prime is 89212810087553. The next prime is 89212810087561. The reversal of 89212810087557 is 75578001821298.

It is an interprime number because it is at equal distance from previous prime (89212810087553) and next prime (89212810087561).

It is not a de Polignac number, because 89212810087557 - 2² = 89212810087553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89212810087494 and 89212810087503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89212810087553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28640908 + ... + 31602645.

It is an arithmetic number, because the mean of its divisors is an integer number (4448986462900).

Almost surely, 2^{89212810087557} is an apocalyptic number.

It is an amenable number.

89212810087557 is a deficient number, since it is larger than the sum of its proper divisors (53154756725243).

89212810087557 is a wasteful number, since it uses less digits than its factorization.

89212810087557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60247794 (or 60247788 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 63.

The spelling of 89212810087557 in words is "eighty-nine trillion, two hundred twelve billion, eight hundred ten million, eighty-seven thousand, five hundred fifty-seven".