7983478743898 has 8 divisors (see below), whose sum is σ = 13685963560992. Its totient is φ = 3421490890236.

The previous prime is 7983478743869. The next prime is 7983478743943. The reversal of 7983478743898 is 8983478743897.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285124240840 + ... + 285124240867.

It is an arithmetic number, because the mean of its divisors is an integer number (1710745445124).

Almost surely, 2^{7983478743898} is an apocalyptic number.

7983478743898 is a deficient number, since it is larger than the sum of its proper divisors (5702484817094).

7983478743898 is a wasteful number, since it uses less digits than its factorization.

7983478743898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570248481716.

The product of its digits is 16387080192, while the sum is 85.

Subtracting 7983478743898 from its reverse (8983478743897), we obtain a palindrome (999999999999).

The spelling of 7983478743898 in words is "seven trillion, nine hundred eighty-three billion, four hundred seventy-eight million, seven hundred forty-three thousand, eight hundred ninety-eight".