672057920305 has 32 divisors (see below), whose sum is σ = 844773027840. Its totient is φ = 512616814080.

The previous prime is 672057920293. The next prime is 672057920341. The reversal of 672057920305 is 503029750276.

It is not a de Polignac number, because 672057920305 - 2²³ = 672049531697 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3705652 + ... + 3882778.

It is an arithmetic number, because the mean of its divisors is an integer number (26399157120).

Almost surely, 2^672057920305 is an apocalyptic number.

It is an amenable number.

672057920305 is a deficient number, since it is larger than the sum of its proper divisors (172715107535).

672057920305 is a wasteful number, since it uses less digits than its factorization.

672057920305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177489.

The product of its (nonzero) digits is 793800, while the sum is 46.

The spelling of 672057920305 in words is "six hundred seventy-two billion, fifty-seven million, nine hundred twenty thousand, three hundred five".