68816535876 has 192 divisors, whose sum is σ = 198335692800. Its totient is φ = 20458224000.

The previous prime is 68816535863. The next prime is 68816535937. The reversal of 68816535876 is 67853561886.

It is a happy number.

68816535876 is a `hidden beast` number, since 6 + 8 + 8 + 16 + 535 + 87 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 59787901 + ... + 59789051.

It is an arithmetic number, because the mean of its divisors is an integer number (1032998400).

Almost surely, 2^68816535876 is an apocalyptic number.

68816535876 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68816535876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99167846400).

68816535876 is an abundant number, since it is smaller than the sum of its proper divisors (129519156924).

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

68816535876 is a wasteful number, since it uses less digits than its factorization.

68816535876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087 (or 2079 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 68816535876 in words is "sixty-eight billion, eight hundred sixteen million, five hundred thirty-five thousand, eight hundred seventy-six".