1242653841792 has 192 divisors, whose sum is σ = 4070551829760. Its totient is φ = 360189434880.

The previous prime is 1242653841757. The next prime is 1242653841809. The reversal of 1242653841792 is 2971483562421.

It is a happy number.

1242653841792 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 6 + 538 + 4 + 17 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1840348 + ... + 2423259.

It is an arithmetic number, because the mean of its divisors is an integer number (21200790780).

Almost surely, 2^{1242653841792} is an apocalyptic number.

1242653841792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1242653841792 is an abundant number, since it is smaller than the sum of its proper divisors (2827897987968).

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

1242653841792 is a wasteful number, since it uses less digits than its factorization.

1242653841792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263661 (or 4263646 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 1242653841792 in words is "one trillion, two hundred forty-two billion, six hundred fifty-three million, eight hundred forty-one thousand, seven hundred ninety-two".