673687006840 has 32 divisors (see below), whose sum is σ = 1515983376960. Its totient is φ = 269441449600.

The previous prime is 673687006819. The next prime is 673687006843. The reversal of 673687006840 is 48600786376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673687006843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713791 + ... + 1362670.

It is an arithmetic number, because the mean of its divisors is an integer number (47374480530).

Almost surely, 2^673687006840 is an apocalyptic number.

It is an amenable number.

673687006840 is an abundant number, since it is smaller than the sum of its proper divisors (842296370120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673687006840 is a wasteful number, since it uses less digits than its factorization.

673687006840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084583 (or 2084579 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 673687006840 in words is "six hundred seventy-three billion, six hundred eighty-seven million, six thousand, eight hundred forty".