8213840397358 has 4 divisors (see below), whose sum is σ = 12320760596040. Its totient is φ = 4106920198678.

The previous prime is 8213840397331. The next prime is 8213840397379. The reversal of 8213840397358 is 8537930483128.

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

It is a junction number, because it is equal to n+sod(n) for n = 8213840397296 and 8213840397305.

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, 2053460099338 + ... + 2053460099341.

It is an arithmetic number, because the mean of its divisors is an integer number (3080190149010).

Almost surely, 2^{8213840397358} is an apocalyptic number.

8213840397358 is a deficient number, since it is larger than the sum of its proper divisors (4106920198682).

8213840397358 is a wasteful number, since it uses less digits than its factorization.

8213840397358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106920198681.

The product of its (nonzero) digits is 34836480, while the sum is 61.

The spelling of 8213840397358 in words is "eight trillion, two hundred thirteen billion, eight hundred forty million, three hundred ninety-seven thousand, three hundred fifty-eight".