90471579911 has 2 divisors, whose sum is σ = 90471579912. Its totient is φ = 90471579910.

The previous prime is 90471579901. The next prime is 90471579943. The reversal of 90471579911 is 11997517409.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90471579911 - 2¹⁴ = 90471563527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90471579901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45235789955 + 45235789956.

It is an arithmetic number, because the mean of its divisors is an integer number (45235789956).

Almost surely, 2^90471579911 is an apocalyptic number.

90471579911 is a deficient number, since it is larger than the sum of its proper divisors (1).

90471579911 is an equidigital number, since it uses as much as digits as its factorization.

90471579911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 714420, while the sum is 53.

The spelling of 90471579911 in words is "ninety billion, four hundred seventy-one million, five hundred seventy-nine thousand, nine hundred eleven".