90479524347109 has 2 divisors, whose sum is σ = 90479524347110. Its totient is φ = 90479524347108.

The previous prime is 90479524347101. The next prime is 90479524347227. The reversal of 90479524347109 is 90174342597409.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86692802944609 + 3786721402500 = 9310897^2 + 1945950^2 .

It is a cyclic number.

It is not a de Polignac number, because 90479524347109 - 2³ = 90479524347101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90479524347101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45239762173554 + 45239762173555.

It is an arithmetic number, because the mean of its divisors is an integer number (45239762173555).

Almost surely, 2^{90479524347109} is an apocalyptic number.

It is an amenable number.

90479524347109 is a deficient number, since it is larger than the sum of its proper divisors (1).

90479524347109 is an equidigital number, since it uses as much as digits as its factorization.

90479524347109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68584320, while the sum is 64.

The spelling of 90479524347109 in words is "ninety trillion, four hundred seventy-nine billion, five hundred twenty-four million, three hundred forty-seven thousand, one hundred nine".