85890928811 has 2 divisors, whose sum is σ = 85890928812. Its totient is φ = 85890928810.

The previous prime is 85890928723. The next prime is 85890928817. The reversal of 85890928811 is 11882909858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85890928811 - 2¹⁴ = 85890912427 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (85890928817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42945464405 + 42945464406.

It is an arithmetic number, because the mean of its divisors is an integer number (42945464406).

Almost surely, 2^85890928811 is an apocalyptic number.

85890928811 is a deficient number, since it is larger than the sum of its proper divisors (1).

85890928811 is an equidigital number, since it uses as much as digits as its factorization.

85890928811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3317760, while the sum is 59.

The spelling of 85890928811 in words is "eighty-five billion, eight hundred ninety million, nine hundred twenty-eight thousand, eight hundred eleven".