68873815552 has 40 divisors (see below), whose sum is σ = 137765102112. Its totient is φ = 34398873600.

The previous prime is 68873815531. The next prime is 68873815567. The reversal of 68873815552 is 25551837886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392602 + ... + 540262.

Almost surely, 2^68873815552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68873815552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68882551056).

68873815552 is an abundant number, since it is smaller than the sum of its proper divisors (68891286560).

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

68873815552 is an equidigital number, since it uses as much as digits as its factorization.

68873815552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148590 (or 148574 counting only the distinct ones).

The product of its digits is 16128000, while the sum is 58.

The spelling of 68873815552 in words is "sixty-eight billion, eight hundred seventy-three million, eight hundred fifteen thousand, five hundred fifty-two".