670427613641 has 4 divisors (see below), whose sum is σ = 670429462800. Its totient is φ = 670425764484.

The previous prime is 670427613613. The next prime is 670427613643. The reversal of 670427613641 is 146316724076.

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 a de Polignac number, because none of the positive numbers 2^k-670427613641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670427613643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181871 + ... + 1172148.

It is an arithmetic number, because the mean of its divisors is an integer number (167607365700).

Almost surely, 2^670427613641 is an apocalyptic number.

It is an amenable number.

670427613641 is a deficient number, since it is larger than the sum of its proper divisors (1849159).

670427613641 is a wasteful number, since it uses less digits than its factorization.

670427613641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849158.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 670427613641 in words is "six hundred seventy billion, four hundred twenty-seven million, six hundred thirteen thousand, six hundred forty-one".