904919986933 has 2 divisors, whose sum is σ = 904919986934. Its totient is φ = 904919986932.

The previous prime is 904919986907. The next prime is 904919986963. The reversal of 904919986933 is 339689919409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 855554701444 + 49365285489 = 924962^2 + 222183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-904919986933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (904919986963) 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 as a sum of consecutive naturals, namely, 452459993466 + 452459993467.

It is an arithmetic number, because the mean of its divisors is an integer number (452459993467).

Almost surely, 2^904919986933 is an apocalyptic number.

It is an amenable number.

904919986933 is a deficient number, since it is larger than the sum of its proper divisors (1).

904919986933 is an equidigital number, since it uses as much as digits as its factorization.

904919986933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102036672, while the sum is 70.

The spelling of 904919986933 in words is "nine hundred four billion, nine hundred nineteen million, nine hundred eighty-six thousand, nine hundred thirty-three".