1245695708648 has 32 divisors (see below), whose sum is σ = 2412348237000. Its totient is φ = 602724814848.

The previous prime is 1245695708603. The next prime is 1245695708659. The reversal of 1245695708648 is 8468075965421.

It can be written as a sum of positive squares in 4 ways, for example, as 1199204586724 + 46491121924 = 1095082^2 + 215618^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20092073 + ... + 20153976.

Almost surely, 2^{1245695708648} is an apocalyptic number.

It is an amenable number.

1245695708648 is a deficient number, since it is larger than the sum of its proper divisors (1166652528352).

1245695708648 is a wasteful number, since it uses less digits than its factorization.

1245695708648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40246181 (or 40246177 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 65.

The spelling of 1245695708648 in words is "one trillion, two hundred forty-five billion, six hundred ninety-five million, seven hundred eight thousand, six hundred forty-eight".