987304955861 has 8 divisors (see below), whose sum is σ = 1128436412544. Its totient is φ = 846195472080.

The previous prime is 987304955831. The next prime is 987304955941. The reversal of 987304955861 is 168559403789.

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

It is not a de Polignac number, because 987304955861 - 2⁶ = 987304955797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987304955801) 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, 5396825 + ... + 5576766.

It is an arithmetic number, because the mean of its divisors is an integer number (141054551568).

Almost surely, 2^987304955861 is an apocalyptic number.

It is an amenable number.

987304955861 is a deficient number, since it is larger than the sum of its proper divisors (141131456683).

987304955861 is a wasteful number, since it uses less digits than its factorization.

987304955861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10986451.

The product of its (nonzero) digits is 65318400, while the sum is 65.

The spelling of 987304955861 in words is "nine hundred eighty-seven billion, three hundred four million, nine hundred fifty-five thousand, eight hundred sixty-one".