987892639901 has 16 divisors (see below), whose sum is σ = 992918118720. Its totient is φ = 982883341440.

The previous prime is 987892639883. The next prime is 987892639927. The reversal of 987892639901 is 109936298789.

It is a cyclic number.

It is not a de Polignac number, because 987892639901 - 2²² = 987888445597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987892639931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375195281 + ... + 375197913.

It is an arithmetic number, because the mean of its divisors is an integer number (62057382420).

Almost surely, 2^987892639901 is an apocalyptic number.

It is an amenable number.

987892639901 is a deficient number, since it is larger than the sum of its proper divisors (5025478819).

987892639901 is a wasteful number, since it uses less digits than its factorization.

987892639901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036.

The product of its (nonzero) digits is 105815808, while the sum is 71.

The spelling of 987892639901 in words is "nine hundred eighty-seven billion, eight hundred ninety-two million, six hundred thirty-nine thousand, nine hundred one".