1241155858842 has 24 divisors (see below), whose sum is σ = 2693515431360. Its totient is φ = 413050249800.

The previous prime is 1241155858841. The next prime is 1241155858919. The reversal of 1241155858842 is 2488585511421.

It is a happy number.

1241155858842 is a `hidden beast` number, since 1 + 2 + 4 + 1 + 1 + 5 + 58 + 588 + 4 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (1241155858841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55686034 + ... + 55708317.

It is an arithmetic number, because the mean of its divisors is an integer number (112229809640).

Almost surely, 2^{1241155858842} is an apocalyptic number.

1241155858842 is an abundant number, since it is smaller than the sum of its proper divisors (1452359572518).

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

1241155858842 is a wasteful number, since it uses less digits than its factorization.

1241155858842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111394978 (or 111394975 counting only the distinct ones).

The product of its digits is 4096000, while the sum is 54.

The spelling of 1241155858842 in words is "one trillion, two hundred forty-one billion, one hundred fifty-five million, eight hundred fifty-eight thousand, eight hundred forty-two".