168040726488 has 48 divisors (see below), whose sum is σ = 462571137600. Its totient is φ = 55095318720.

The previous prime is 168040726487. The next prime is 168040726559. The reversal of 168040726488 is 884627040861.

168040726488 is a `hidden beast` number, since 16 + 80 + 4 + 0 + 72 + 6 + 488 = 666.

It is a super-2 number, since 2×168040726488² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168040726487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19125928 + ... + 19134711.

It is an arithmetic number, because the mean of its divisors is an integer number (9636898700).

Almost surely, 2^168040726488 is an apocalyptic number.

168040726488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

168040726488 is an abundant number, since it is smaller than the sum of its proper divisors (294530411112).

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

168040726488 is a wasteful number, since it uses less digits than its factorization.

168040726488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38260712 (or 38260705 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 168040726488 in words is "one hundred sixty-eight billion, forty million, seven hundred twenty-six thousand, four hundred eighty-eight".