676793989921 has 32 divisors (see below), whose sum is σ = 803625762816. Its totient is φ = 557750016000.

The previous prime is 676793989903. The next prime is 676793989999. The reversal of 676793989921 is 129989397676.

It is not a de Polignac number, because 676793989921 - 2²⁹ = 676257119009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (676793989121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34100961 + ... + 34120801.

It is an arithmetic number, because the mean of its divisors is an integer number (25113305088).

Almost surely, 2^676793989921 is an apocalyptic number.

It is an amenable number.

676793989921 is a deficient number, since it is larger than the sum of its proper divisors (126831772895).

676793989921 is a wasteful number, since it uses less digits than its factorization.

676793989921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20893.

The product of its digits is 555532992, while the sum is 76.

The spelling of 676793989921 in words is "six hundred seventy-six billion, seven hundred ninety-three million, nine hundred eighty-nine thousand, nine hundred twenty-one".