356403222449 has 4 divisors (see below), whose sum is σ = 356617537536. Its totient is φ = 356188907364.

The previous prime is 356403222389. The next prime is 356403222467. The reversal of 356403222449 is 944222304653.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 944222304653 = 17 ⋅55542488509.

It is a cyclic number.

It is not a de Polignac number, because 356403222449 - 2²⁸ = 356134786993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (356405222449) 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, 107155049 + ... + 107158374.

It is an arithmetic number, because the mean of its divisors is an integer number (89154384384).

Almost surely, 2^356403222449 is an apocalyptic number.

It is an amenable number.

356403222449 is a deficient number, since it is larger than the sum of its proper divisors (214315087).

356403222449 is a wasteful number, since it uses less digits than its factorization.

356403222449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214315086.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 356403222449 in words is "three hundred fifty-six billion, four hundred three million, two hundred twenty-two thousand, four hundred forty-nine".