68294770992 has 120 divisors (see below), whose sum is σ = 218745240480. Its totient is φ = 19485066240.

The previous prime is 68294770991. The next prime is 68294771003. The reversal of 68294770992 is 29907749286.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (68294770991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 666892 + ... + 762452.

It is an arithmetic number, because the mean of its divisors is an integer number (1822877004).

Almost surely, 2^68294770992 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 68294770992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109372620240).

68294770992 is an abundant number, since it is smaller than the sum of its proper divisors (150450469488).

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

68294770992 is a wasteful number, since it uses less digits than its factorization.

68294770992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96291 (or 96282 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 68294770992 in words is "sixty-eight billion, two hundred ninety-four million, seven hundred seventy thousand, nine hundred ninety-two".