90579582047 has 2 divisors, whose sum is σ = 90579582048. Its totient is φ = 90579582046.

The previous prime is 90579582029. The next prime is 90579582061. The reversal of 90579582047 is 74028597509.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90579582047 - 2³² = 86284614751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90579581983 and 90579582001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90579582347) 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, 45289791023 + 45289791024.

It is an arithmetic number, because the mean of its divisors is an integer number (45289791024).

Almost surely, 2^90579582047 is an apocalyptic number.

90579582047 is a deficient number, since it is larger than the sum of its proper divisors (1).

90579582047 is an equidigital number, since it uses as much as digits as its factorization.

90579582047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 90579582047 in words is "ninety billion, five hundred seventy-nine million, five hundred eighty-two thousand, forty-seven".