987125898406771 has 8 divisors (see below), whose sum is σ = 1001114807478624. Its totient is φ = 973139370651840.

The previous prime is 987125898406717. The next prime is 987125898406783. The reversal of 987125898406771 is 177604898521789.

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

It is a de Polignac number, because none of the positive numbers 2^k-987125898406771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987125898409771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594494290 + ... + 596152423.

It is an arithmetic number, because the mean of its divisors is an integer number (125139350934828).

Almost surely, 2^{987125898406771} is an apocalyptic number.

987125898406771 is a deficient number, since it is larger than the sum of its proper divisors (13988909071853).

987125898406771 is a wasteful number, since it uses less digits than its factorization.

987125898406771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190658461.

The product of its (nonzero) digits is 3413975040, while the sum is 82.

The spelling of 987125898406771 in words is "nine hundred eighty-seven trillion, one hundred twenty-five billion, eight hundred ninety-eight million, four hundred six thousand, seven hundred seventy-one".