671513235041 has 4 divisors (see below), whose sum is σ = 732559892784. Its totient is φ = 610466577300.

The previous prime is 671513235037. The next prime is 671513235083. The reversal of 671513235041 is 140532315176.

It is a happy number.

671513235041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 671513235041 - 2² = 671513235037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 671513234986 and 671513235004.

It is not an unprimeable number, because it can be changed into a prime (671513235241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30523328855 + ... + 30523328876.

It is an arithmetic number, because the mean of its divisors is an integer number (183139973196).

Almost surely, 2^671513235041 is an apocalyptic number.

It is an amenable number.

671513235041 is a deficient number, since it is larger than the sum of its proper divisors (61046657743).

671513235041 is a wasteful number, since it uses less digits than its factorization.

671513235041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61046657742.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 671513235041 in words is "six hundred seventy-one billion, five hundred thirteen million, two hundred thirty-five thousand, forty-one".