671548414461 has 16 divisors (see below), whose sum is σ = 932273539008. Its totient is φ = 429619132800.

The previous prime is 671548414417. The next prime is 671548414463. The reversal of 671548414461 is 164414845176.

It is a de Polignac number, because none of the positive numbers 2^k-671548414461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671548414463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44744491 + ... + 44759496.

It is an arithmetic number, because the mean of its divisors is an integer number (58267096188).

Almost surely, 2^671548414461 is an apocalyptic number.

671548414461 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

671548414461 is a deficient number, since it is larger than the sum of its proper divisors (260725124547).

671548414461 is a wasteful number, since it uses less digits than its factorization.

671548414461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89504092.

The product of its digits is 2580480, while the sum is 51.

The spelling of 671548414461 in words is "six hundred seventy-one billion, five hundred forty-eight million, four hundred fourteen thousand, four hundred sixty-one".