1242280783641 has 16 divisors (see below), whose sum is σ = 1743596769600. Its totient is φ = 784578233088.

The previous prime is 1242280783573. The next prime is 1242280783643. The reversal of 1242280783641 is 1463870822421.

It is not a de Polignac number, because 1242280783641 - 2²³ = 1242272395033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242280783643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2140165 + ... + 2657981.

It is an arithmetic number, because the mean of its divisors is an integer number (108974798100).

Almost surely, 2^{1242280783641} is an apocalyptic number.

It is an amenable number.

1242280783641 is a deficient number, since it is larger than the sum of its proper divisors (501315985959).

1242280783641 is a wasteful number, since it uses less digits than its factorization.

1242280783641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559928.

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 1242280783641 in words is "one trillion, two hundred forty-two billion, two hundred eighty million, seven hundred eighty-three thousand, six hundred forty-one".