1672201856687 has 12 divisors (see below), whose sum is σ = 1732395744000. Its totient is φ = 1614034284480.

The previous prime is 1672201856669. The next prime is 1672201856701. The reversal of 1672201856687 is 7866581022761.

It is not a de Polignac number, because 1672201856687 - 2²⁰ = 1672200808111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672201856587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1903562 + ... + 2639687.

It is an arithmetic number, because the mean of its divisors is an integer number (144366312000).

Almost surely, 2^{1672201856687} is an apocalyptic number.

1672201856687 is a deficient number, since it is larger than the sum of its proper divisors (60193887313).

1672201856687 is an equidigital number, since it uses as much as digits as its factorization.

1672201856687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543694 (or 4543663 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 1672201856687 in words is "one trillion, six hundred seventy-two billion, two hundred one million, eight hundred fifty-six thousand, six hundred eighty-seven".