647357148311 has 4 divisors (see below), whose sum is σ = 647896164624. Its totient is φ = 646818132000.

The previous prime is 647357148289. The next prime is 647357148331. The reversal of 647357148311 is 113841753746.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-647357148311 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 647357148311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647357148331) 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 3 ways as a sum of consecutive naturals, for example, 269506355 + ... + 269508756.

It is an arithmetic number, because the mean of its divisors is an integer number (161974041156).

Almost surely, 2^647357148311 is an apocalyptic number.

647357148311 is a deficient number, since it is larger than the sum of its proper divisors (539016313).

647357148311 is a wasteful number, since it uses less digits than its factorization.

647357148311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539016312.

The product of its digits is 1693440, while the sum is 50.

The spelling of 647357148311 in words is "six hundred forty-seven billion, three hundred fifty-seven million, one hundred forty-eight thousand, three hundred eleven".