68797071381 has 32 divisors (see below), whose sum is σ = 92922347520. Its totient is φ = 45273412800.

The previous prime is 68797071349. The next prime is 68797071397. The reversal of 68797071381 is 18317079786.

It is not a de Polignac number, because 68797071381 - 2⁵ = 68797071349 is a prime.

It is a super-2 number, since 2×68797071381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68797071341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55977475 + ... + 55978703.

It is an arithmetic number, because the mean of its divisors is an integer number (2903823360).

Almost surely, 2^68797071381 is an apocalyptic number.

It is an amenable number.

68797071381 is a deficient number, since it is larger than the sum of its proper divisors (24125276139).

68797071381 is a wasteful number, since it uses less digits than its factorization.

68797071381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097.

The product of its (nonzero) digits is 3556224, while the sum is 57.

The spelling of 68797071381 in words is "sixty-eight billion, seven hundred ninety-seven million, seventy-one thousand, three hundred eighty-one".