1672173933907 has 4 divisors (see below), whose sum is σ = 1672391022480. Its totient is φ = 1671956845336.

The previous prime is 1672173933887. The next prime is 1672173933943. The reversal of 1672173933907 is 7093393712761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672173933907 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672173933007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108532732 + ... + 108548137.

It is an arithmetic number, because the mean of its divisors is an integer number (418097755620).

Almost surely, 2^{1672173933907} is an apocalyptic number.

1672173933907 is a deficient number, since it is larger than the sum of its proper divisors (217088573).

1672173933907 is an equidigital number, since it uses as much as digits as its factorization.

1672173933907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217088572.

The product of its (nonzero) digits is 9001692, while the sum is 58.

The spelling of 1672173933907 in words is "one trillion, six hundred seventy-two billion, one hundred seventy-three million, nine hundred thirty-three thousand, nine hundred seven".