1489458621897 has 6 divisors (see below), whose sum is σ = 2151440231642. Its totient is φ = 992972414592.

The previous prime is 1489458621881. The next prime is 1489458621899. The reversal of 1489458621897 is 7981268549841.

1489458621897 is a `hidden beast` number, since 1 + 4 + 89 + 458 + 6 + 2 + 1 + 8 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1085355574416 + 404103047481 = 1041804^2 + 635691^2 .

It is not a de Polignac number, because 1489458621897 - 2⁴ = 1489458621881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1489458621899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82747701208 + ... + 82747701225.

Almost surely, 2^{1489458621897} is an apocalyptic number.

It is an amenable number.

1489458621897 is a deficient number, since it is larger than the sum of its proper divisors (661981609745).

1489458621897 is a wasteful number, since it uses less digits than its factorization.

1489458621897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165495402439 (or 165495402436 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 72.

The spelling of 1489458621897 in words is "one trillion, four hundred eighty-nine billion, four hundred fifty-eight million, six hundred twenty-one thousand, eight hundred ninety-seven".