671040527064513 has 4 divisors (see below), whose sum is σ = 894720702752688. Its totient is φ = 447360351376340.

The previous prime is 671040527064493. The next prime is 671040527064569. The reversal of 671040527064513 is 315460725040176.

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 671040527064513 - 2⁹ = 671040527064001 is a prime.

It is a super-3 number, since 3×671040527064513³ (a number of 45 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (671040527064613) 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, 111840087844083 + ... + 111840087844088.

It is an arithmetic number, because the mean of its divisors is an integer number (223680175688172).

Almost surely, 2^{671040527064513} is an apocalyptic number.

It is an amenable number.

671040527064513 is a deficient number, since it is larger than the sum of its proper divisors (223680175688175).

671040527064513 is a wasteful number, since it uses less digits than its factorization.

671040527064513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223680175688174.

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 671040527064513 in words is "six hundred seventy-one trillion, forty billion, five hundred twenty-seven million, sixty-four thousand, five hundred thirteen".