682809393651838 has 4 divisors (see below), whose sum is σ = 1024214090477760. Its totient is φ = 341404696825918.

The previous prime is 682809393651811. The next prime is 682809393651839. The reversal of 682809393651838 is 838156393908286.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682809393651839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170702348412958 + ... + 170702348412961.

It is an arithmetic number, because the mean of its divisors is an integer number (256053522619440).

Almost surely, 2^{682809393651838} is an apocalyptic number.

682809393651838 is a deficient number, since it is larger than the sum of its proper divisors (341404696825922).

682809393651838 is a wasteful number, since it uses less digits than its factorization.

682809393651838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341404696825921.

The product of its (nonzero) digits is 3224862720, while the sum is 79.

The spelling of 682809393651838 in words is "six hundred eighty-two trillion, eight hundred nine billion, three hundred ninety-three million, six hundred fifty-one thousand, eight hundred thirty-eight".