52391702647 has 4 divisors (see below), whose sum is σ = 52393167256. Its totient is φ = 52390238040.

The previous prime is 52391702609. The next prime is 52391702651. The reversal of 52391702647 is 74620719325.

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

It is a cyclic number.

It is not a de Polignac number, because 52391702647 - 2¹⁵ = 52391669879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52391702597 and 52391702606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52391702677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677268 + ... + 750649.

It is an arithmetic number, because the mean of its divisors is an integer number (13098291814).

Almost surely, 2^52391702647 is an apocalyptic number.

52391702647 is a deficient number, since it is larger than the sum of its proper divisors (1464609).

52391702647 is a wasteful number, since it uses less digits than its factorization.

52391702647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464608.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 52391702647 in words is "fifty-two billion, three hundred ninety-one million, seven hundred two thousand, six hundred forty-seven".