904740788961 has 6 divisors (see below), whose sum is σ = 1306847806290. Its totient is φ = 603160525968.

The previous prime is 904740788947. The next prime is 904740788969. The reversal of 904740788961 is 169887047409.

904740788961 is a `hidden beast` number, since 9 + 0 + 474 + 0 + 78 + 8 + 96 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 493162085025 + 411578703936 = 702255^2 + 641544^2 .

It is not a de Polignac number, because 904740788961 - 2⁹ = 904740788449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (904740788969) 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 5 ways as a sum of consecutive naturals, for example, 50263377156 + ... + 50263377173.

It is an arithmetic number, because the mean of its divisors is an integer number (217807967715).

Almost surely, 2^904740788961 is an apocalyptic number.

It is an amenable number.

904740788961 is a deficient number, since it is larger than the sum of its proper divisors (402107017329).

904740788961 is a wasteful number, since it uses less digits than its factorization.

904740788961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100526754335 (or 100526754332 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 904740788961 in words is "nine hundred four billion, seven hundred forty million, seven hundred eighty-eight thousand, nine hundred sixty-one".