90842888911 has 2 divisors, whose sum is σ = 90842888912. Its totient is φ = 90842888910.

The previous prime is 90842888909. The next prime is 90842888951. The reversal of 90842888911 is 11988824809.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90842888911 - 2¹ = 90842888909 is a prime.

Together with 90842888909, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90842888951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45421444455 + 45421444456.

It is an arithmetic number, because the mean of its divisors is an integer number (45421444456).

Almost surely, 2^90842888911 is an apocalyptic number.

90842888911 is a deficient number, since it is larger than the sum of its proper divisors (1).

90842888911 is an equidigital number, since it uses as much as digits as its factorization.

90842888911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2654208, while the sum is 58.

The spelling of 90842888911 in words is "ninety billion, eight hundred forty-two million, eight hundred eighty-eight thousand, nine hundred eleven".