87963449980 has 96 divisors (see below), whose sum is σ = 216927349632. Its totient is φ = 29328998400.

The previous prime is 87963449963. The next prime is 87963449983. The reversal of 87963449980 is 8994436978.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87963449983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16164060 + ... + 16169500.

It is an arithmetic number, because the mean of its divisors is an integer number (2259659892).

Almost surely, 2^87963449980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87963449980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108463674816).

87963449980 is an abundant number, since it is smaller than the sum of its proper divisors (128963899652).

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

87963449980 is a wasteful number, since it uses less digits than its factorization.

87963449980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8615 (or 8613 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 67.

The spelling of 87963449980 in words is "eighty-seven billion, nine hundred sixty-three million, four hundred forty-nine thousand, nine hundred eighty".