673663366376 has 128 divisors (see below), whose sum is σ = 1696716806400. Its totient is φ = 242164961280.

The previous prime is 673663366373. The next prime is 673663366379.

673663366376 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (673663366373) and next prime (673663366379).

It is not an unprimeable number, because it can be changed into a prime (673663366373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18472256 + ... + 18508688.

It is an arithmetic number, because the mean of its divisors is an integer number (13255600050).

Almost surely, 2^673663366376 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 673663366376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848358403200).

673663366376 is an abundant number, since it is smaller than the sum of its proper divisors (1023053440024).

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

673663366376 is a wasteful number, since it uses less digits than its factorization.

673663366376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38779 (or 38775 counting only the distinct ones).

The product of its digits is 185177664, while the sum is 62.

The spelling of 673663366376 in words is "six hundred seventy-three billion, six hundred sixty-three million, three hundred sixty-six thousand, three hundred seventy-six".