8347976797438 has 4 divisors (see below), whose sum is σ = 12521965196160. Its totient is φ = 4173988398718.

The previous prime is 8347976797343. The next prime is 8347976797469.

8347976797438 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×8347976797438² (a number of 27 digits) contains 22 as substring.

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, 2086994199358 + ... + 2086994199361.

It is an arithmetic number, because the mean of its divisors is an integer number (3130491299040).

Almost surely, 2^{8347976797438} is an apocalyptic number.

8347976797438 is a deficient number, since it is larger than the sum of its proper divisors (4173988398722).

8347976797438 is a wasteful number, since it uses less digits than its factorization.

8347976797438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173988398721.

The product of its digits is 10754021376, while the sum is 82.

The spelling of 8347976797438 in words is "eight trillion, three hundred forty-seven billion, nine hundred seventy-six million, seven hundred ninety-seven thousand, four hundred thirty-eight".