68870633292 has 108 divisors (see below), whose sum is σ = 186609923136. Its totient is φ = 22216070880.

The previous prime is 68870633269. The next prime is 68870633297. The reversal of 68870633292 is 29233607886.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (108).

It is a super-2 number, since 2×68870633292² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (68870633297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 771238 + ... + 855890.

Almost surely, 2^68870633292 is an apocalyptic number.

68870633292 is a gapful number since it is divisible by the number (62) 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 68870633292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93304961568).

68870633292 is an abundant number, since it is smaller than the sum of its proper divisors (117739289844).

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

68870633292 is an equidigital number, since it uses as much as digits as its factorization.

68870633292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84712 (or 84689 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 68870633292 in words is "sixty-eight billion, eight hundred seventy million, six hundred thirty-three thousand, two hundred ninety-two".