1672907229445 has 4 divisors (see below), whose sum is σ = 2007488675340. Its totient is φ = 1338325783552.

The previous prime is 1672907229431. The next prime is 1672907229457. The reversal of 1672907229445 is 5449227092761.

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

It can be written as a sum of positive squares in 2 ways, for example, as 313383877249 + 1359523352196 = 559807^2 + 1165986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672907229445 - 2¹⁵ = 1672907196677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1672907229445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167290722940 + ... + 167290722949.

It is an arithmetic number, because the mean of its divisors is an integer number (501872168835).

Almost surely, 2^{1672907229445} is an apocalyptic number.

It is an amenable number.

1672907229445 is a deficient number, since it is larger than the sum of its proper divisors (334581445895).

1672907229445 is an equidigital number, since it uses as much as digits as its factorization.

1672907229445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334581445894.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 1672907229445 in words is "one trillion, six hundred seventy-two billion, nine hundred seven million, two hundred twenty-nine thousand, four hundred forty-five".