1648613700425 has 12 divisors (see below), whose sum is σ = 2064521397516. Its totient is φ = 1305832632000.

The previous prime is 1648613700389. The next prime is 1648613700467. The reversal of 1648613700425 is 5240073168461.

It can be written as a sum of positive squares in 6 ways, for example, as 61847710864 + 1586765989561 = 248692^2 + 1259669^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1648613700425 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1648613700425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326455634 + ... + 326460683.

It is an arithmetic number, because the mean of its divisors is an integer number (172043449793).

Almost surely, 2^{1648613700425} is an apocalyptic number.

It is an amenable number.

1648613700425 is a deficient number, since it is larger than the sum of its proper divisors (415907697091).

1648613700425 is a wasteful number, since it uses less digits than its factorization.

1648613700425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652916428 (or 652916423 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

Adding to 1648613700425 its reverse (5240073168461), we get a palindrome (6888686868886).

The spelling of 1648613700425 in words is "one trillion, six hundred forty-eight billion, six hundred thirteen million, seven hundred thousand, four hundred twenty-five".