7283478456838 has 4 divisors (see below), whose sum is σ = 10925217685260. Its totient is φ = 3641739228418.

The previous prime is 7283478456803. The next prime is 7283478456869. The reversal of 7283478456838 is 8386548743827.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820869614208 + ... + 1820869614211.

It is an arithmetic number, because the mean of its divisors is an integer number (2731304421315).

Almost surely, 2^{7283478456838} is an apocalyptic number.

7283478456838 is a deficient number, since it is larger than the sum of its proper divisors (3641739228422).

7283478456838 is a wasteful number, since it uses less digits than its factorization.

7283478456838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3641739228421.

The product of its digits is 1734082560, while the sum is 73.

The spelling of 7283478456838 in words is "seven trillion, two hundred eighty-three billion, four hundred seventy-eight million, four hundred fifty-six thousand, eight hundred thirty-eight".