168238871450 has 48 divisors (see below), whose sum is σ = 337413013560. Its totient is φ = 62041989120.

The previous prime is 168238871447. The next prime is 168238871461. The reversal of 168238871450 is 54178832861.

It can be written as a sum of positive squares in 12 ways, for example, as 18309841 + 168220561609 = 4279^2 + 410147^2 .

It is a junction number, because it is equal to n+sod(n) for n = 168238871392 and 168238871401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 365882 + ... + 685818.

Almost surely, 2^168238871450 is an apocalyptic number.

168238871450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168238871450 is an abundant number, since it is smaller than the sum of its proper divisors (169174142110).

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

168238871450 is a wasteful number, since it uses less digits than its factorization.

168238871450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320771 (or 320766 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 168238871450 in words is "one hundred sixty-eight billion, two hundred thirty-eight million, eight hundred seventy-one thousand, four hundred fifty".