1245749754648 has 32 divisors (see below), whose sum is σ = 3559285013760. Its totient is φ = 355928501280.

The previous prime is 1245749754647. The next prime is 1245749754649. The reversal of 1245749754648 is 8464579475421.

It is an interprime number because it is at equal distance from previous prime (1245749754647) and next prime (1245749754649).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245749754647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3707588388 + ... + 3707588723.

It is an arithmetic number, because the mean of its divisors is an integer number (111227656680).

Almost surely, 2^{1245749754648} is an apocalyptic number.

It is an amenable number.

1245749754648 is an abundant number, since it is smaller than the sum of its proper divisors (2313535259112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245749754648 is a wasteful number, since it uses less digits than its factorization.

1245749754648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7415177127 (or 7415177123 counting only the distinct ones).

The product of its digits is 270950400, while the sum is 66.

The spelling of 1245749754648 in words is "one trillion, two hundred forty-five billion, seven hundred forty-nine million, seven hundred fifty-four thousand, six hundred forty-eight".