671377044045 has 8 divisors (see below), whose sum is σ = 1074203270496. Its totient is φ = 358067756816.

The previous prime is 671377044029. The next prime is 671377044059. The reversal of 671377044045 is 540440773176.

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 671377044045 - 2⁴ = 671377044029 is a prime.

It is a super-3 number, since 3×671377044045³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 671377043985 and 671377044003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22379234787 + ... + 22379234816.

It is an arithmetic number, because the mean of its divisors is an integer number (134275408812).

Almost surely, 2^671377044045 is an apocalyptic number.

It is an amenable number.

671377044045 is a deficient number, since it is larger than the sum of its proper divisors (402826226451).

671377044045 is a wasteful number, since it uses less digits than its factorization.

671377044045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44758469611.

The product of its (nonzero) digits is 1975680, while the sum is 48.

The spelling of 671377044045 in words is "six hundred seventy-one billion, three hundred seventy-seven million, forty-four thousand, forty-five".