987653252608 has 80 divisors (see below), whose sum is σ = 2188067610960. Its totient is φ = 441573580800.

The previous prime is 987653252591. The next prime is 987653252617. The reversal of 987653252608 is 806252356789.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093863 + ... + 1780966.

It is an arithmetic number, because the mean of its divisors is an integer number (27350845137).

Almost surely, 2^987653252608 is an apocalyptic number.

It is an amenable number.

987653252608 is an abundant number, since it is smaller than the sum of its proper divisors (1200414358352).

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

987653252608 is a wasteful number, since it uses less digits than its factorization.

987653252608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874919 (or 2874903 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 61.

The spelling of 987653252608 in words is "nine hundred eighty-seven billion, six hundred fifty-three million, two hundred fifty-two thousand, six hundred eight".