87971350518 has 48 divisors (see below), whose sum is σ = 191842350336. Its totient is φ = 29133537840.

The previous prime is 87971350513. The next prime is 87971350573. The reversal of 87971350518 is 81505317978.

It is a happy number.

87971350518 is a `hidden beast` number, since 8 + 7 + 9 + 71 + 3 + 50 + 518 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87971350513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7121055 + ... + 7133397.

It is an arithmetic number, because the mean of its divisors is an integer number (3996715632).

Almost surely, 2^87971350518 is an apocalyptic number.

87971350518 is an abundant number, since it is smaller than the sum of its proper divisors (103870999818).

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

87971350518 is a wasteful number, since it uses less digits than its factorization.

87971350518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14889 (or 14886 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 54.

The spelling of 87971350518 in words is "eighty-seven billion, nine hundred seventy-one million, three hundred fifty thousand, five hundred eighteen".