901680811 has 2 divisors, whose sum is σ = 901680812. Its totient is φ = 901680810.

The previous prime is 901680781. The next prime is 901680821. The reversal of 901680811 is 118086109.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 901680811 - 2⁵ = 901680779 is a prime.

It is not a weakly prime, because it can be changed into another prime (901680821) 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, 450840405 + 450840406.

It is an arithmetic number, because the mean of its divisors is an integer number (450840406).

Almost surely, 2^901680811 is an apocalyptic number.

901680811 is a deficient number, since it is larger than the sum of its proper divisors (1).

901680811 is an equidigital number, since it uses as much as digits as its factorization.

901680811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 901680811 is about 30028.0004495804. Note that the first 3 decimals coincide. The cubic root of 901680811 is about 966.0900497878.

The spelling of 901680811 in words is "nine hundred one million, six hundred eighty thousand, eight hundred eleven".