965233780513 has 4 divisors (see below), whose sum is σ = 967130114580. Its totient is φ = 963337446448.

The previous prime is 965233780493. The next prime is 965233780517. The reversal of 965233780513 is 315087332569.

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 725592201489 + 239641579024 = 851817^2 + 489532^2 .

It is a cyclic number.

It is not a de Polignac number, because 965233780513 - 2²⁹ = 964696909601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (965233780517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948166270 + ... + 948167287.

It is an arithmetic number, because the mean of its divisors is an integer number (241782528645).

Almost surely, 2^965233780513 is an apocalyptic number.

It is an amenable number.

965233780513 is a deficient number, since it is larger than the sum of its proper divisors (1896334067).

965233780513 is a wasteful number, since it uses less digits than its factorization.

965233780513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896334066.

The product of its (nonzero) digits is 4082400, while the sum is 52.

The spelling of 965233780513 in words is "nine hundred sixty-five billion, two hundred thirty-three million, seven hundred eighty thousand, five hundred thirteen".