68920483496831 has 4 divisors (see below), whose sum is σ = 68973458504664. Its totient is φ = 68867508489000.

The previous prime is 68920483496803. The next prime is 68920483496861. The reversal of 68920483496831 is 13869438402986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68920483496831 - 2²² = 68920479302527 is a prime.

It is a super-2 number, since 2×68920483496831² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68920483496861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26487501965 + ... + 26487504566.

It is an arithmetic number, because the mean of its divisors is an integer number (17243364626166).

Almost surely, 2^{68920483496831} is an apocalyptic number.

68920483496831 is a deficient number, since it is larger than the sum of its proper divisors (52975007833).

68920483496831 is a wasteful number, since it uses less digits than its factorization.

68920483496831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52975007832.

The product of its (nonzero) digits is 429981696, while the sum is 71.

The spelling of 68920483496831 in words is "sixty-eight trillion, nine hundred twenty billion, four hundred eighty-three million, four hundred ninety-six thousand, eight hundred thirty-one".