1481194171845 has 48 divisors (see below), whose sum is σ = 2588798085120. Its totient is φ = 783392867712.

The previous prime is 1481194171843. The next prime is 1481194171859. The reversal of 1481194171845 is 5481714911841.

1481194171845 is a `hidden beast` number, since 1 + 48 + 1 + 1 + 9 + 417 + 184 + 5 = 666.

It is not a de Polignac number, because 1481194171845 - 2¹ = 1481194171843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1481194171791 and 1481194171800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481194171843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12726526 + ... + 12842384.

It is an arithmetic number, because the mean of its divisors is an integer number (53933293440).

Almost surely, 2^{1481194171845} is an apocalyptic number.

1481194171845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1481194171845 is a deficient number, since it is larger than the sum of its proper divisors (1107603913275).

1481194171845 is a wasteful number, since it uses less digits than its factorization.

1481194171845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118234 (or 118231 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 54.

The spelling of 1481194171845 in words is "one trillion, four hundred eighty-one billion, one hundred ninety-four million, one hundred seventy-one thousand, eight hundred forty-five".