68002792121 has 8 divisors (see below), whose sum is σ = 74224621344. Its totient is φ = 61787589120.

The previous prime is 68002792093. The next prime is 68002792127. The reversal of 68002792121 is 12129720086.

68002792121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68002792121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68002792127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635080 + ... + 1676153.

It is an arithmetic number, because the mean of its divisors is an integer number (9278077668).

Almost surely, 2^68002792121 is an apocalyptic number.

It is an amenable number.

68002792121 is a deficient number, since it is larger than the sum of its proper divisors (6221829223).

68002792121 is a wasteful number, since it uses less digits than its factorization.

68002792121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313111.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 68002792121 in words is "sixty-eight billion, two million, seven hundred ninety-two thousand, one hundred twenty-one".