1198442757648 has 40 divisors (see below), whose sum is σ = 3096131982688. Its totient is φ = 399460937472.

The previous prime is 1198442757623. The next prime is 1198442757649. The reversal of 1198442757648 is 8467572448911.

It is not an unprimeable number, because it can be changed into a prime (1198442757649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361236 + ... + 1589772.

Almost surely, 2^{1198442757648} is an apocalyptic number.

It is an amenable number.

1198442757648 is an abundant number, since it is smaller than the sum of its proper divisors (1897689225040).

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

1198442757648 is a wasteful number, since it uses less digits than its factorization.

1198442757648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248871 (or 1248865 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 66.

The spelling of 1198442757648 in words is "one trillion, one hundred ninety-eight billion, four hundred forty-two million, seven hundred fifty-seven thousand, six hundred forty-eight".