1084489949557 has 8 divisors (see below), whose sum is σ = 1239423384896. Its totient is φ = 929558089152.

The previous prime is 1084489949533. The next prime is 1084489949573. The reversal of 1084489949557 is 7559499844801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1084489949557 - 2¹⁹ = 1084489425269 is a prime.

It is a super-2 number, since 2×1084489949557² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1084489949557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1084489944557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2485693 + ... + 2889229.

It is an arithmetic number, because the mean of its divisors is an integer number (154927923112).

Almost surely, 2^{1084489949557} is an apocalyptic number.

It is an amenable number.

1084489949557 is a deficient number, since it is larger than the sum of its proper divisors (154933435339).

1084489949557 is an equidigital number, since it uses as much as digits as its factorization.

1084489949557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787467.

The product of its (nonzero) digits is 522547200, while the sum is 73.

The spelling of 1084489949557 in words is "one trillion, eighty-four billion, four hundred eighty-nine million, nine hundred forty-nine thousand, five hundred fifty-seven".