90759954409 has 2 divisors, whose sum is σ = 90759954410. Its totient is φ = 90759954408.

The previous prime is 90759954391. The next prime is 90759954413. The reversal of 90759954409 is 90445995709.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78931216809 + 11828737600 = 280947^2 + 108760^2 .

It is a cyclic number.

It is not a de Polignac number, because 90759954409 - 2¹³ = 90759946217 is a prime.

It is not a weakly prime, because it can be changed into another prime (90759954449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45379977204 + 45379977205.

It is an arithmetic number, because the mean of its divisors is an integer number (45379977205).

Almost surely, 2^90759954409 is an apocalyptic number.

It is an amenable number.

90759954409 is a deficient number, since it is larger than the sum of its proper divisors (1).

90759954409 is an equidigital number, since it uses as much as digits as its factorization.

90759954409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18370800, while the sum is 61.

The spelling of 90759954409 in words is "ninety billion, seven hundred fifty-nine million, nine hundred fifty-four thousand, four hundred nine".