647190375623 has 8 divisors (see below), whose sum is σ = 706084809600. Its totient is φ = 588305765880.

The previous prime is 647190375617. The next prime is 647190375653. The reversal of 647190375623 is 326573091746.

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 647190375623 - 2³² = 642895408327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647190375653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2317973 + ... + 2582126.

It is an arithmetic number, because the mean of its divisors is an integer number (88260601200).

Almost surely, 2^647190375623 is an apocalyptic number.

647190375623 is a deficient number, since it is larger than the sum of its proper divisors (58894433977).

647190375623 is a wasteful number, since it uses less digits than its factorization.

647190375623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912117.

The product of its (nonzero) digits is 5715360, while the sum is 53.

The spelling of 647190375623 in words is "six hundred forty-seven billion, one hundred ninety million, three hundred seventy-five thousand, six hundred twenty-three".