647711882371 has 16 divisors (see below), whose sum is σ = 689993123328. Its totient is φ = 605902953600.

The previous prime is 647711882369. The next prime is 647711882401. The reversal of 647711882371 is 173288117746.

It is a cyclic number.

It is not a de Polignac number, because 647711882371 - 2¹ = 647711882369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (647711802371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2543626 + ... + 2786656.

It is an arithmetic number, because the mean of its divisors is an integer number (43124570208).

Almost surely, 2^647711882371 is an apocalyptic number.

647711882371 is a deficient number, since it is larger than the sum of its proper divisors (42281240957).

647711882371 is a wasteful number, since it uses less digits than its factorization.

647711882371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244002.

The product of its digits is 3161088, while the sum is 55.

The spelling of 647711882371 in words is "six hundred forty-seven billion, seven hundred eleven million, eight hundred eighty-two thousand, three hundred seventy-one".