672213312991 has 8 divisors (see below), whose sum is σ = 733636093824. Its totient is φ = 610842612120.

The previous prime is 672213312959. The next prime is 672213313001. The reversal of 672213312991 is 199213312276.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 672213312991 - 2⁵ = 672213312959 is a prime.

It is a super-2 number, since 2×672213312991² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672213312941) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12992995 + ... + 13044628.

It is an arithmetic number, because the mean of its divisors is an integer number (91704511728).

Almost surely, 2^672213312991 is an apocalyptic number.

672213312991 is a deficient number, since it is larger than the sum of its proper divisors (61422780833).

672213312991 is a wasteful number, since it uses less digits than its factorization.

672213312991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26039981.

The product of its digits is 244944, while the sum is 46.

The spelling of 672213312991 in words is "six hundred seventy-two billion, two hundred thirteen million, three hundred twelve thousand, nine hundred ninety-one".