671548371451 has 8 divisors (see below), whose sum is σ = 707262581520. Its totient is φ = 635871117312.

The previous prime is 671548371437. The next prime is 671548371479. The reversal of 671548371451 is 154173845176.

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 671548371451 - 2⁷ = 671548371323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671548371491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9201670 + ... + 9274363.

It is an arithmetic number, because the mean of its divisors is an integer number (88407822690).

Almost surely, 2^671548371451 is an apocalyptic number.

671548371451 is a deficient number, since it is larger than the sum of its proper divisors (35714210069).

671548371451 is a wasteful number, since it uses less digits than its factorization.

671548371451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18477965.

The product of its digits is 2822400, while the sum is 52.

The spelling of 671548371451 in words is "six hundred seventy-one billion, five hundred forty-eight million, three hundred seventy-one thousand, four hundred fifty-one".