1647319072052 has 12 divisors (see below), whose sum is σ = 2884895864676. Its totient is φ = 823063110720.

The previous prime is 1647319072051. The next prime is 1647319072093. The reversal of 1647319072052 is 2502709137461.

It can be written as a sum of positive squares in 2 ways, for example, as 249334443556 + 1397984628496 = 499334^2 + 1182364^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1647319071988 and 1647319072006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1647319072051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149100113 + ... + 149111160.

It is an arithmetic number, because the mean of its divisors is an integer number (240407988723).

Almost surely, 2^{1647319072052} is an apocalyptic number.

It is an amenable number.

1647319072052 is a deficient number, since it is larger than the sum of its proper divisors (1237576792624).

1647319072052 is a wasteful number, since it uses less digits than its factorization.

1647319072052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298212658 (or 298212656 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 1647319072052 in words is "one trillion, six hundred forty-seven billion, three hundred nineteen million, seventy-two thousand, fifty-two".