671307494149 has 8 divisors (see below), whose sum is σ = 695870413920. Its totient is φ = 646838866800.

The previous prime is 671307494089. The next prime is 671307494171. The reversal of 671307494149 is 941494703176.

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 671307494149 - 2¹⁵ = 671307461381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671307494149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671307494189) 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, 23558607 + ... + 23587084.

It is an arithmetic number, because the mean of its divisors is an integer number (86983801740).

Almost surely, 2^671307494149 is an apocalyptic number.

It is an amenable number.

671307494149 is a deficient number, since it is larger than the sum of its proper divisors (24562919771).

671307494149 is a wasteful number, since it uses less digits than its factorization.

671307494149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47146211.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 671307494149 in words is "six hundred seventy-one billion, three hundred seven million, four hundred ninety-four thousand, one hundred forty-nine".