1084854149551 has 4 divisors (see below), whose sum is σ = 1086515488872. Its totient is φ = 1083192810232.

The previous prime is 1084854149549. The next prime is 1084854149573. The reversal of 1084854149551 is 1559414584801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1084854149551 - 2¹ = 1084854149549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1084854149492 and 1084854149501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1084854149251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830668681 + ... + 830669986.

It is an arithmetic number, because the mean of its divisors is an integer number (271628872218).

Almost surely, 2^{1084854149551} is an apocalyptic number.

1084854149551 is a deficient number, since it is larger than the sum of its proper divisors (1661339321).

1084854149551 is an equidigital number, since it uses as much as digits as its factorization.

1084854149551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661339320.

The product of its (nonzero) digits is 4608000, while the sum is 55.

The spelling of 1084854149551 in words is "one trillion, eighty-four billion, eight hundred fifty-four million, one hundred forty-nine thousand, five hundred fifty-one".