1489561297788 has 48 divisors (see below), whose sum is σ = 3488034421760. Its totient is φ = 494753370624.

The previous prime is 1489561297781. The next prime is 1489561297831. The reversal of 1489561297788 is 8877921659841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489561297781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3614028 + ... + 4005036.

Almost surely, 2^{1489561297788} is an apocalyptic number.

It is an amenable number.

1489561297788 is an abundant number, since it is smaller than the sum of its proper divisors (1998473123972).

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

1489561297788 is a wasteful number, since it uses less digits than its factorization.

1489561297788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392146 (or 392144 counting only the distinct ones).

The product of its digits is 487710720, while the sum is 75.

The spelling of 1489561297788 in words is "one trillion, four hundred eighty-nine billion, five hundred sixty-one million, two hundred ninety-seven thousand, seven hundred eighty-eight".