89628442087438 has 8 divisors (see below), whose sum is σ = 134830105965432. Its totient is φ = 44685073432296.

The previous prime is 89628442087409. The next prime is 89628442087451. The reversal of 89628442087438 is 83478024482698.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64573804845 + ... + 64573806232.

It is an arithmetic number, because the mean of its divisors is an integer number (16853763245679).

Almost surely, 2^{89628442087438} is an apocalyptic number.

89628442087438 is a deficient number, since it is larger than the sum of its proper divisors (45201663877994).

89628442087438 is a wasteful number, since it uses less digits than its factorization.

89628442087438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129147611426.

The product of its (nonzero) digits is 1189085184, while the sum is 73.

The spelling of 89628442087438 in words is "eighty-nine trillion, six hundred twenty-eight billion, four hundred forty-two million, eighty-seven thousand, four hundred thirty-eight".