1217443614742 has 8 divisors (see below), whose sum is σ = 1857117378600. Its totient is φ = 598404488544.

The previous prime is 1217443614733. The next prime is 1217443614757. The reversal of 1217443614742 is 2474163447121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1217443614692 and 1217443614701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5158659267 + ... + 5158659502.

It is an arithmetic number, because the mean of its divisors is an integer number (232139672325).

Almost surely, 2^{1217443614742} is an apocalyptic number.

1217443614742 is a deficient number, since it is larger than the sum of its proper divisors (639673763858).

1217443614742 is a wasteful number, since it uses less digits than its factorization.

1217443614742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10317318830.

The product of its digits is 903168, while the sum is 46.

The spelling of 1217443614742 in words is "one trillion, two hundred seventeen billion, four hundred forty-three million, six hundred fourteen thousand, seven hundred forty-two".