369253420649 has 4 divisors (see below), whose sum is σ = 372641066820. Its totient is φ = 365865774480.

The previous prime is 369253420643. The next prime is 369253420717. The reversal of 369253420649 is 946024352963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 946024352963 = 397 ⋅2382932879.

It can be written as a sum of positive squares in 2 ways, for example, as 335203945024 + 34049475625 = 578968^2 + 184525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-369253420649 is a prime.

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 369253420649.

It is not an unprimeable number, because it can be changed into a prime (369253420643) 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, 1693822922 + ... + 1693823139.

It is an arithmetic number, because the mean of its divisors is an integer number (93160266705).

Almost surely, 2^369253420649 is an apocalyptic number.

It is an amenable number.

369253420649 is a deficient number, since it is larger than the sum of its proper divisors (3387646171).

369253420649 is a wasteful number, since it uses less digits than its factorization.

369253420649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387646170.

The product of its (nonzero) digits is 8398080, while the sum is 53.

The spelling of 369253420649 in words is "three hundred sixty-nine billion, two hundred fifty-three million, four hundred twenty thousand, six hundred forty-nine".