68921012986 has 16 divisors (see below), whose sum is σ = 123287278464. Its totient is φ = 28253334384.

The previous prime is 68921012983. The next prime is 68921012989.

68921012986 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (68921012983) and next prime (68921012989).

It is not an unprimeable number, because it can be changed into a prime (68921012983) 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, 107019885 + ... + 107020528.

It is an arithmetic number, because the mean of its divisors is an integer number (7705454904).

Almost surely, 2^68921012986 is an apocalyptic number.

68921012986 is a deficient number, since it is larger than the sum of its proper divisors (54366265478).

68921012986 is a wasteful number, since it uses less digits than its factorization.

68921012986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214040445.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 68921012986 in words is "sixty-eight billion, nine hundred twenty-one million, twelve thousand, nine hundred eighty-six".