673806623215 has 64 divisors (see below), whose sum is σ = 939766924800. Its totient is φ = 458625024000.

The previous prime is 673806623209. The next prime is 673806623239. The reversal of 673806623215 is 512326608376.

It is not a de Polignac number, because 673806623215 - 2³ = 673806623207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 134947759 + ... + 134952751.

It is an arithmetic number, because the mean of its divisors is an integer number (14683858200).

Almost surely, 2^673806623215 is an apocalyptic number.

673806623215 is a deficient number, since it is larger than the sum of its proper divisors (265960301585).

673806623215 is a wasteful number, since it uses less digits than its factorization.

673806623215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6568.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 673806623215 in words is "six hundred seventy-three billion, eight hundred six million, six hundred twenty-three thousand, two hundred fifteen".