87438181662 has 48 divisors (see below), whose sum is σ = 204098036688. Its totient is φ = 26894085120.

The previous prime is 87438181651. The next prime is 87438181693. The reversal of 87438181662 is 26618183478.

It is a super-2 number, since 2×87438181662² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87438181599 and 87438181608.

It is a congruent number.

It is an unprimeable number.

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, 576337 + ... + 712067.

It is an arithmetic number, because the mean of its divisors is an integer number (4252042431).

Almost surely, 2^87438181662 is an apocalyptic number.

87438181662 is an abundant number, since it is smaller than the sum of its proper divisors (116659855026).

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

87438181662 is a wasteful number, since it uses less digits than its factorization.

87438181662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138505 (or 138502 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The spelling of 87438181662 in words is "eighty-seven billion, four hundred thirty-eight million, one hundred eighty-one thousand, six hundred sixty-two".