783213980533 has 4 divisors (see below), whose sum is σ = 802316760588. Its totient is φ = 764111200480.

The previous prime is 783213980509. The next prime is 783213980551. The reversal of 783213980533 is 335089312387.

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 277121174929 + 506092805604 = 526423^2 + 711402^2 .

It is a cyclic number.

It is not a de Polignac number, because 783213980533 - 2¹⁷ = 783213849461 is a prime.

It is a super-2 number, since 2×783213980533² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (783213980573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9551389966 + ... + 9551390047.

It is an arithmetic number, because the mean of its divisors is an integer number (200579190147).

Almost surely, 2^783213980533 is an apocalyptic number.

It is an amenable number.

783213980533 is a deficient number, since it is larger than the sum of its proper divisors (19102780055).

783213980533 is a wasteful number, since it uses less digits than its factorization.

783213980533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19102780054.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 783213980533 in words is "seven hundred eighty-three billion, two hundred thirteen million, nine hundred eighty thousand, five hundred thirty-three".