68973311337987 has 32 divisors (see below), whose sum is σ = 105189820116480. Its totient is φ = 39380470698240.

The previous prime is 68973311337937. The next prime is 68973311338027. The reversal of 68973311337987 is 78973311337986.

It is not a de Polignac number, because 68973311337987 - 2³⁶ = 68904591861251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68973311337937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142746912 + ... + 143229282.

It is an arithmetic number, because the mean of its divisors is an integer number (3287181878640).

Almost surely, 2^{68973311337987} is an apocalyptic number.

68973311337987 is a deficient number, since it is larger than the sum of its proper divisors (36216508778493).

68973311337987 is a wasteful number, since it uses less digits than its factorization.

68973311337987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488043.

The product of its digits is 864162432, while the sum is 75.

Subtracting 68973311337987 from its reverse (78973311337986), we obtain a palindrome (9999999999999).

The spelling of 68973311337987 in words is "sixty-eight trillion, nine hundred seventy-three billion, three hundred eleven million, three hundred thirty-seven thousand, nine hundred eighty-seven".