68924298920 has 128 divisors (see below), whose sum is σ = 167311872000. Its totient is φ = 25475523840.

The previous prime is 68924298917. The next prime is 68924299033. The reversal of 68924298920 is 2989242986.

It is a super-2 number, since 2×68924298920² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68924298920.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4976405 + ... + 4990235.

It is an arithmetic number, because the mean of its divisors is an integer number (1307124000).

Almost surely, 2^68924298920 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 68924298920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83655936000).

68924298920 is an abundant number, since it is smaller than the sum of its proper divisors (98387573080).

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

68924298920 is a wasteful number, since it uses less digits than its factorization.

68924298920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14023 (or 14019 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 59.

The spelling of 68924298920 in words is "sixty-eight billion, nine hundred twenty-four million, two hundred ninety-eight thousand, nine hundred twenty".