356404236847 has 4 divisors (see below), whose sum is σ = 356406729136. Its totient is φ = 356401744560.

The previous prime is 356404236833. The next prime is 356404236913. The reversal of 356404236847 is 748632404653.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 748632404653 = 7 ⋅106947486379.

It is a cyclic number.

It is not a de Polignac number, because 356404236847 - 2¹⁹ = 356403712559 is a prime.

It is a super-3 number, since 3×356404236847³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 356404236794 and 356404236803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (356404236647) 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, 1017678 + ... + 1322299.

It is an arithmetic number, because the mean of its divisors is an integer number (89101682284).

Almost surely, 2^356404236847 is an apocalyptic number.

356404236847 is a deficient number, since it is larger than the sum of its proper divisors (2492289).

356404236847 is a wasteful number, since it uses less digits than its factorization.

356404236847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492288.

The product of its (nonzero) digits is 11612160, while the sum is 52.

The spelling of 356404236847 in words is "three hundred fifty-six billion, four hundred four million, two hundred thirty-six thousand, eight hundred forty-seven".