904126475869 has 2 divisors, whose sum is σ = 904126475870. Its totient is φ = 904126475868.

The previous prime is 904126475839. The next prime is 904126475951. The reversal of 904126475869 is 968574621409.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 754879470244 + 149247005625 = 868838^2 + 386325^2 .

It is a cyclic number.

It is not a de Polignac number, because 904126475869 - 2⁷ = 904126475741 is a prime.

It is a super-2 number, since 2×904126475869² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (904126475839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452063237934 + 452063237935.

It is an arithmetic number, because the mean of its divisors is an integer number (452063237935).

Almost surely, 2^904126475869 is an apocalyptic number.

It is an amenable number.

904126475869 is a deficient number, since it is larger than the sum of its proper divisors (1).

904126475869 is an equidigital number, since it uses as much as digits as its factorization.

904126475869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 904126475869 in words is "nine hundred four billion, one hundred twenty-six million, four hundred seventy-five thousand, eight hundred sixty-nine".