987129001008 has 120 divisors (see below), whose sum is σ = 2925387316800. Its totient is φ = 309656635392.

The previous prime is 987129001007. The next prime is 987129001013. The reversal of 987129001008 is 800100921789.

987129001008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (987129001007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46400998 + ... + 46422266.

It is an arithmetic number, because the mean of its divisors is an integer number (24378227640).

Almost surely, 2^987129001008 is an apocalyptic number.

It is an amenable number.

987129001008 is an abundant number, since it is smaller than the sum of its proper divisors (1938258315792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987129001008 is a wasteful number, since it uses less digits than its factorization.

987129001008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40259 (or 40250 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The spelling of 987129001008 in words is "nine hundred eighty-seven billion, one hundred twenty-nine million, one thousand, eight".