356143744849 has 4 divisors (see below), whose sum is σ = 356527108260. Its totient is φ = 355760381440.

The previous prime is 356143744843. The next prime is 356143744877. The reversal of 356143744849 is 948447341653.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10172739600 + 345971005249 = 100860^2 + 588193^2 .

It is a cyclic number.

It is not a de Polignac number, because 356143744849 - 2⁷ = 356143744721 is a prime.

It is a super-2 number, since 2×356143744849² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 356143744793 and 356143744802.

It is not an unprimeable number, because it can be changed into a prime (356143744843) 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, 191680312 + ... + 191682169.

It is an arithmetic number, because the mean of its divisors is an integer number (89131777065).

Almost surely, 2^356143744849 is an apocalyptic number.

It is an amenable number.

356143744849 is a deficient number, since it is larger than the sum of its proper divisors (383363411).

356143744849 is an equidigital number, since it uses as much as digits as its factorization.

356143744849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383363410.

The product of its digits is 34836480, while the sum is 58.

The spelling of 356143744849 in words is "three hundred fifty-six billion, one hundred forty-three million, seven hundred forty-four thousand, eight hundred forty-nine".