1055494851409 has 8 divisors (see below), whose sum is σ = 1055814289920. Its totient is φ = 1055175475536.

The previous prime is 1055494851407. The next prime is 1055494851461. The reversal of 1055494851409 is 9041584945501.

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

It is a cyclic number.

It is not a de Polignac number, because 1055494851409 - 2¹ = 1055494851407 is a prime.

It is a super-2 number, since 2×1055494851409² (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 1055494851409.

It is not an unprimeable number, because it can be changed into a prime (1055494851401) 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, 81669222 + ... + 81682144.

It is an arithmetic number, because the mean of its divisors is an integer number (131976786240).

Almost surely, 2^{1055494851409} is an apocalyptic number.

It is an amenable number.

1055494851409 is a deficient number, since it is larger than the sum of its proper divisors (319438511).

1055494851409 is a wasteful number, since it uses less digits than its factorization.

1055494851409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31319.

The product of its (nonzero) digits is 5184000, while the sum is 55.

The spelling of 1055494851409 in words is "one trillion, fifty-five billion, four hundred ninety-four million, eight hundred fifty-one thousand, four hundred nine".