1918286040195 has 96 divisors (see below), whose sum is σ = 4018289393664. Its totient is φ = 827943897600.

The previous prime is 1918286040193. The next prime is 1918286040199. The reversal of 1918286040195 is 5910406828191.

1918286040195 is a `hidden beast` number, since 1 + 9 + 1 + 8 + 28 + 604 + 0 + 1 + 9 + 5 = 666.

It is not a de Polignac number, because 1918286040195 - 2¹ = 1918286040193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1918286040193) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1995307 + ... + 2796036.

It is an arithmetic number, because the mean of its divisors is an integer number (41857181184).

Almost surely, 2^{1918286040195} is an apocalyptic number.

1918286040195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1918286040195 is an abundant number, since it is smaller than the sum of its proper divisors (2100003353469).

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

1918286040195 is a wasteful number, since it uses less digits than its factorization.

1918286040195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791433 (or 4791430 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 54.

The spelling of 1918286040195 in words is "one trillion, nine hundred eighteen billion, two hundred eighty-six million, forty thousand, one hundred ninety-five".