1844413521156 has 36 divisors (see below), whose sum is σ = 4680408654012. Its totient is φ = 612412268544.

The previous prime is 1844413521079. The next prime is 1844413521179. The reversal of 1844413521156 is 6511253144481.

1844413521156 is a `hidden beast` number, since 1 + 8 + 4 + 441 + 3 + 52 + 1 + 156 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1560665538756 + 283747982400 = 1249266^2 + 532680^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1844413521156² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 99667225 + ... + 99685728.

Almost surely, 2^{1844413521156} is an apocalyptic number.

It is an amenable number.

1844413521156 is an abundant number, since it is smaller than the sum of its proper divisors (2835995132856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1844413521156 is a wasteful number, since it uses less digits than its factorization.

1844413521156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199353220 (or 199353215 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The spelling of 1844413521156 in words is "one trillion, eight hundred forty-four billion, four hundred thirteen million, five hundred twenty-one thousand, one hundred fifty-six".