7983478743897 has 32 divisors (see below), whose sum is σ = 10985428305280. Its totient is φ = 5153351777280.

The previous prime is 7983478743869. The next prime is 7983478743943.

7983478743897 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7983478743897 - 2⁷ = 7983478743769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7983478743857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38122758 + ... + 38331600.

It is an arithmetic number, because the mean of its divisors is an integer number (343294634540).

Almost surely, 2^{7983478743897} is an apocalyptic number.

It is an amenable number.

7983478743897 is a deficient number, since it is larger than the sum of its proper divisors (3001949561383).

7983478743897 is a wasteful number, since it uses less digits than its factorization.

7983478743897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210553.

The product of its digits is 14338695168, while the sum is 84.

The spelling of 7983478743897 in words is "seven trillion, nine hundred eighty-three billion, four hundred seventy-eight million, seven hundred forty-three thousand, eight hundred ninety-seven".