987090673145 has 8 divisors (see below), whose sum is σ = 1184540807304. Its totient is φ = 789651205504.

The previous prime is 987090673133. The next prime is 987090673207. The reversal of 987090673145 is 541376090789.

It can be written as a sum of positive squares in 4 ways, for example, as 72267001 + 987018406144 = 8501^2 + 993488^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 987090673145 - 2⁸ = 987090672889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2461604 + ... + 2834373.

It is an arithmetic number, because the mean of its divisors is an integer number (148067600913).

Almost surely, 2^987090673145 is an apocalyptic number.

It is an amenable number.

987090673145 is a deficient number, since it is larger than the sum of its proper divisors (197450134159).

987090673145 is a wasteful number, since it uses less digits than its factorization.

987090673145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5333259.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 987090673145 in words is "nine hundred eighty-seven billion, ninety million, six hundred seventy-three thousand, one hundred forty-five".