673778877376 has 112 divisors (see below), whose sum is σ = 1522550615040. Its totient is φ = 293052672000.

The previous prime is 673778877361. The next prime is 673778877383.

673778877376 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1768891 + ... + 2115781.

It is an arithmetic number, because the mean of its divisors is an integer number (13594201920).

Almost surely, 2^673778877376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673778877376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761275307520).

673778877376 is an abundant number, since it is smaller than the sum of its proper divisors (848771737664).

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

673778877376 is a wasteful number, since it uses less digits than its factorization.

673778877376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347034 (or 347024 counting only the distinct ones).

The product of its digits is 2439569664, while the sum is 76.

The spelling of 673778877376 in words is "six hundred seventy-three billion, seven hundred seventy-eight million, eight hundred seventy-seven thousand, three hundred seventy-six".