987652460139 has 4 divisors (see below), whose sum is σ = 1316869946856. Its totient is φ = 658434973424.

The previous prime is 987652460071. The next prime is 987652460143. The reversal of 987652460139 is 931064256789.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 987652460139 - 2⁹ = 987652459627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (987652460939) 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 3 ways as a sum of consecutive naturals, for example, 164608743354 + ... + 164608743359.

It is an arithmetic number, because the mean of its divisors is an integer number (329217486714).

It is a 1-persistent number, because it is pandigital, but 2⋅987652460139 = 1975304920278 is not.

Almost surely, 2^987652460139 is an apocalyptic number.

987652460139 is a deficient number, since it is larger than the sum of its proper divisors (329217486717).

987652460139 is a wasteful number, since it uses less digits than its factorization.

987652460139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329217486716.

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 987652460139 in words is "nine hundred eighty-seven billion, six hundred fifty-two million, four hundred sixty thousand, one hundred thirty-nine".