1904920793827 has 2 divisors, whose sum is σ = 1904920793828. Its totient is φ = 1904920793826.

The previous prime is 1904920793791. The next prime is 1904920793833. The reversal of 1904920793827 is 7283970294091.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1904920793827 is a prime.

It is not a weakly prime, because it can be changed into another prime (1904920793837) 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 as a sum of consecutive naturals, namely, 952460396913 + 952460396914.

It is an arithmetic number, because the mean of its divisors is an integer number (952460396914).

Almost surely, 2^{1904920793827} is an apocalyptic number.

1904920793827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1904920793827 is an equidigital number, since it uses as much as digits as its factorization.

1904920793827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 1904920793827 in words is "one trillion, nine hundred four billion, nine hundred twenty million, seven hundred ninety-three thousand, eight hundred twenty-seven".