350678782243 has 4 divisors (see below), whose sum is σ = 353201651320. Its totient is φ = 348155913168.

The previous prime is 350678782199. The next prime is 350678782249. The reversal of 350678782243 is 342287876053.

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: 342287876053 = 223 ⋅1534923211.

It is a cyclic number.

It is not a de Polignac number, because 350678782243 - 2²¹ = 350676685091 is a prime.

It is a super-2 number, since 2×350678782243² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350678782249) 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, 1261434330 + ... + 1261434607.

It is an arithmetic number, because the mean of its divisors is an integer number (88300412830).

Almost surely, 2^350678782243 is an apocalyptic number.

350678782243 is a deficient number, since it is larger than the sum of its proper divisors (2522869077).

350678782243 is a wasteful number, since it uses less digits than its factorization.

350678782243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522869076.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 350678782243 in words is "three hundred fifty billion, six hundred seventy-eight million, seven hundred eighty-two thousand, two hundred forty-three".