87481406888 has 8 divisors (see below), whose sum is σ = 164027637930. Its totient is φ = 43740703440.

The previous prime is 87481406801. The next prime is 87481406911. The reversal of 87481406888 is 88860418478.

It can be written as a sum of positive squares in only one way, i.e., 59048028004 + 28433378884 = 242998^2 + 168622^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×87481406888² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87481406888.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5467587923 + ... + 5467587938.

Almost surely, 2^87481406888 is an apocalyptic number.

It is an amenable number.

87481406888 is a deficient number, since it is larger than the sum of its proper divisors (76546231042).

87481406888 is a wasteful number, since it uses less digits than its factorization.

87481406888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10935175867 (or 10935175863 counting only the distinct ones).

The product of its (nonzero) digits is 22020096, while the sum is 62.

The spelling of 87481406888 in words is "eighty-seven billion, four hundred eighty-one million, four hundred six thousand, eight hundred eighty-eight".