68929884351 has 6 divisors (see below), whose sum is σ = 99565388520. Its totient is φ = 45953256228.

The previous prime is 68929884347. The next prime is 68929884371. The reversal of 68929884351 is 15348892986.

It is not a de Polignac number, because 68929884351 - 2² = 68929884347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68929884371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3829438011 + ... + 3829438028.

It is an arithmetic number, because the mean of its divisors is an integer number (16594231420).

Almost surely, 2^68929884351 is an apocalyptic number.

68929884351 is a deficient number, since it is larger than the sum of its proper divisors (30635504169).

68929884351 is a wasteful number, since it uses less digits than its factorization.

68929884351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7658876045 (or 7658876042 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The spelling of 68929884351 in words is "sixty-eight billion, nine hundred twenty-nine million, eight hundred eighty-four thousand, three hundred fifty-one".