1648686396425 has 12 divisors (see below), whose sum is σ = 2044390388736. Its totient is φ = 1318936693200.

The previous prime is 1648686396391. The next prime is 1648686396437. The reversal of 1648686396425 is 5246936868461.

It is not a de Polignac number, because 1648686396425 - 2¹⁴ = 1648686380041 is a prime.

It is a Duffinian number.

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, 3154520 + ... + 3639830.

It is an arithmetic number, because the mean of its divisors is an integer number (170365865728).

Almost surely, 2^{1648686396425} is an apocalyptic number.

It is an amenable number.

1648686396425 is a deficient number, since it is larger than the sum of its proper divisors (395703992311).

1648686396425 is a wasteful number, since it uses less digits than its factorization.

1648686396425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621208 (or 621203 counting only the distinct ones).

The product of its digits is 358318080, while the sum is 68.

The spelling of 1648686396425 in words is "one trillion, six hundred forty-eight billion, six hundred eighty-six million, three hundred ninety-six thousand, four hundred twenty-five".