68890905003 has 8 divisors (see below), whose sum is σ = 92181425616. Its totient is φ = 45763827200.

The previous prime is 68890904993. The next prime is 68890905011. The reversal of 68890905003 is 30050909886.

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

It is a cyclic number.

It is not a de Polignac number, because 68890905003 - 2⁶ = 68890904939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68890905023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40859718 + ... + 40861403.

It is an arithmetic number, because the mean of its divisors is an integer number (11522678202).

Almost surely, 2^68890905003 is an apocalyptic number.

68890905003 is a deficient number, since it is larger than the sum of its proper divisors (23290520613).

68890905003 is a wasteful number, since it uses less digits than its factorization.

68890905003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81721405.

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 68890905003 in words is "sixty-eight billion, eight hundred ninety million, nine hundred five thousand, three".