875420921713 has 4 divisors (see below), whose sum is σ = 942760992628. Its totient is φ = 808080850800.

The previous prime is 875420921689. The next prime is 875420921717. The reversal of 875420921713 is 317129024578.

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 316325255184 + 559095666529 = 562428^2 + 747727^2 .

It is a cyclic number.

It is not a de Polignac number, because 875420921713 - 2⁵ = 875420921681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (875420921717) 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, 33670035438 + ... + 33670035463.

It is an arithmetic number, because the mean of its divisors is an integer number (235690248157).

Almost surely, 2^875420921713 is an apocalyptic number.

It is an amenable number.

875420921713 is a deficient number, since it is larger than the sum of its proper divisors (67340070915).

875420921713 is a wasteful number, since it uses less digits than its factorization.

875420921713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67340070914.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 875420921713 in words is "eight hundred seventy-five billion, four hundred twenty million, nine hundred twenty-one thousand, seven hundred thirteen".