87873121480 has 16 divisors (see below), whose sum is σ = 197714523420. Its totient is φ = 35149248576.

The previous prime is 87873121471. The next prime is 87873121507. The reversal of 87873121480 is 8412137878.

It can be written as a sum of positive squares in 2 ways, for example, as 80873121924 + 6999999556 = 284382^2 + 83666^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098413979 + ... + 1098414058.

Almost surely, 2^87873121480 is an apocalyptic number.

It is an amenable number.

87873121480 is an abundant number, since it is smaller than the sum of its proper divisors (109841401940).

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

87873121480 is a wasteful number, since it uses less digits than its factorization.

87873121480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196828048 (or 2196828044 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 49.

The spelling of 87873121480 in words is "eighty-seven billion, eight hundred seventy-three million, one hundred twenty-one thousand, four hundred eighty".