1398490282989 has 32 divisors (see below), whose sum is σ = 2131423407360. Its totient is φ = 905854757184.

The previous prime is 1398490282967. The next prime is 1398490282999. The reversal of 1398490282989 is 9892820948931.

1398490282989 is a `hidden beast` number, since 1 + 3 + 98 + 490 + 28 + 29 + 8 + 9 = 666.

It is not a de Polignac number, because 1398490282989 - 2¹² = 1398490278893 is a prime.

It is a super-2 number, since 2×1398490282989² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398490282999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4596694 + ... + 4891479.

It is an arithmetic number, because the mean of its divisors is an integer number (66606981480).

Almost surely, 2^{1398490282989} is an apocalyptic number.

It is an amenable number.

1398490282989 is a deficient number, since it is larger than the sum of its proper divisors (732933124371).

1398490282989 is a wasteful number, since it uses less digits than its factorization.

1398490282989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488338 (or 9488332 counting only the distinct ones).

The product of its (nonzero) digits is 161243136, while the sum is 72.

The spelling of 1398490282989 in words is "one trillion, three hundred ninety-eight billion, four hundred ninety million, two hundred eighty-two thousand, nine hundred eighty-nine".