363694689847 has 4 divisors (see below), whose sum is σ = 368676808960. Its totient is φ = 358712570736.

The previous prime is 363694689833. The next prime is 363694689959. The reversal of 363694689847 is 748986496363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 748986496363 = 7 ⋅106998070909.

It is a de Polignac number, because none of the positive numbers 2^k-363694689847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (73), and also a Moran number because the ratio is a prime number: 4982119039 = 363694689847 / (3 + 6 + 3 + 6 + 9 + 4 + 6 + 8 + 9 + 8 + 4 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 363694689847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (363694629847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2491059447 + ... + 2491059592.

It is an arithmetic number, because the mean of its divisors is an integer number (92169202240).

Almost surely, 2^363694689847 is an apocalyptic number.

363694689847 is a deficient number, since it is larger than the sum of its proper divisors (4982119113).

363694689847 is an equidigital number, since it uses as much as digits as its factorization.

363694689847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4982119112.

The product of its digits is 1128701952, while the sum is 73.

The spelling of 363694689847 in words is "three hundred sixty-three billion, six hundred ninety-four million, six hundred eighty-nine thousand, eight hundred forty-seven".