1242018578783 has 8 divisors (see below), whose sum is σ = 1327368950352. Its totient is φ = 1158033813376.

The previous prime is 1242018578753. The next prime is 1242018578819. The reversal of 1242018578783 is 3878758102421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1242018578783 - 2³⁸ = 967140671839 is a prime.

It is a super-2 number, since 2×1242018578783² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242018578753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341399660 + ... + 341403297.

It is an arithmetic number, because the mean of its divisors is an integer number (165921118794).

Almost surely, 2^{1242018578783} is an apocalyptic number.

1242018578783 is a deficient number, since it is larger than the sum of its proper divisors (85350371569).

1242018578783 is a wasteful number, since it uses less digits than its factorization.

1242018578783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682803081.

The product of its (nonzero) digits is 6021120, while the sum is 56.

The spelling of 1242018578783 in words is "one trillion, two hundred forty-two billion, eighteen million, five hundred seventy-eight thousand, seven hundred eighty-three".