647361274325 has 6 divisors (see below), whose sum is σ = 802727980194. Its totient is φ = 517889019440.

The previous prime is 647361274297. The next prime is 647361274331. The reversal of 647361274325 is 523472163746.

It can be written as a sum of positive squares in 3 ways, for example, as 922762129 + 646438512196 = 30377^2 + 804014^2 .

It is not a de Polignac number, because 647361274325 - 2¹² = 647361270229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12947225462 + ... + 12947225511.

It is an arithmetic number, because the mean of its divisors is an integer number (133787996699).

Almost surely, 2^647361274325 is an apocalyptic number.

It is an amenable number.

647361274325 is a deficient number, since it is larger than the sum of its proper divisors (155366705869).

647361274325 is a wasteful number, since it uses less digits than its factorization.

647361274325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25894450983 (or 25894450978 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 50.

The spelling of 647361274325 in words is "six hundred forty-seven billion, three hundred sixty-one million, two hundred seventy-four thousand, three hundred twenty-five".