833138406245 has 4 divisors (see below), whose sum is σ = 999766087500. Its totient is φ = 666510724992.

The previous prime is 833138406227. The next prime is 833138406293. The reversal of 833138406245 is 542604831338.

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 612176361889 + 220962044356 = 782417^2 + 470066^2 .

It is a cyclic number.

It is not a de Polignac number, because 833138406245 - 2⁸ = 833138405989 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 833138406245.

It is a congruent number.

It is an unprimeable number.

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, 83313840620 + ... + 83313840629.

It is an arithmetic number, because the mean of its divisors is an integer number (249941521875).

Almost surely, 2^833138406245 is an apocalyptic number.

It is an amenable number.

833138406245 is a deficient number, since it is larger than the sum of its proper divisors (166627681255).

833138406245 is a wasteful number, since it uses less digits than its factorization.

833138406245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166627681254.

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 833138406245 in words is "eight hundred thirty-three billion, one hundred thirty-eight million, four hundred six thousand, two hundred forty-five".