623435379253 has 4 divisors (see below), whose sum is σ = 624254611788. Its totient is φ = 622616146720.

The previous prime is 623435379233. The next prime is 623435379269. The reversal of 623435379253 is 352973534326.

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 13197873924 + 610237505329 = 114882^2 + 781177^2 .

It is a cyclic number.

It is not a de Polignac number, because 623435379253 - 2²⁹ = 622898508341 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 623435379253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623435379233) 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, 409615126 + ... + 409616647.

It is an arithmetic number, because the mean of its divisors is an integer number (156063652947).

Almost surely, 2^623435379253 is an apocalyptic number.

It is an amenable number.

623435379253 is a deficient number, since it is larger than the sum of its proper divisors (819232535).

623435379253 is an equidigital number, since it uses as much as digits as its factorization.

623435379253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819232534.

The product of its digits is 12247200, while the sum is 52.

The spelling of 623435379253 in words is "six hundred twenty-three billion, four hundred thirty-five million, three hundred seventy-nine thousand, two hundred fifty-three".