68031013087 has 16 divisors (see below), whose sum is σ = 71152123680. Its totient is φ = 64963024000.

The previous prime is 68031013081. The next prime is 68031013109. The reversal of 68031013087 is 78031013086.

It is a cyclic number.

It is not a de Polignac number, because 68031013087 - 2¹⁵ = 68030980319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68031013081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2743848 + ... + 2768530.

It is an arithmetic number, because the mean of its divisors is an integer number (4447007730).

Almost surely, 2^68031013087 is an apocalyptic number.

68031013087 is a deficient number, since it is larger than the sum of its proper divisors (3121110593).

68031013087 is a wasteful number, since it uses less digits than its factorization.

68031013087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25754.

The product of its (nonzero) digits is 24192, while the sum is 37.

Subtracting 68031013087 from its reverse (78031013086), we obtain a palindrome (9999999999).

The spelling of 68031013087 in words is "sixty-eight billion, thirty-one million, thirteen thousand, eighty-seven".