987958243812 has 48 divisors (see below), whose sum is σ = 2366101180800. Its totient is φ = 320655939840.

The previous prime is 987958243807. The next prime is 987958243813. The reversal of 987958243812 is 218342859789.

987958243812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×987958243812² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (987958243813) 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, 1722112 + ... + 2222967.

It is an arithmetic number, because the mean of its divisors is an integer number (49293774600).

Almost surely, 2^987958243812 is an apocalyptic number.

It is an amenable number.

987958243812 is an abundant number, since it is smaller than the sum of its proper divisors (1378142936988).

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

987958243812 is a wasteful number, since it uses less digits than its factorization.

987958243812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945636 (or 3945634 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 66.

The spelling of 987958243812 in words is "nine hundred eighty-seven billion, nine hundred fifty-eight million, two hundred forty-three thousand, eight hundred twelve".