90354717527 has 2 divisors, whose sum is σ = 90354717528. Its totient is φ = 90354717526.

The previous prime is 90354717473. The next prime is 90354717589. The reversal of 90354717527 is 72571745309.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90354717527 - 2¹⁶ = 90354651991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90354717727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45177358763 + 45177358764.

It is an arithmetic number, because the mean of its divisors is an integer number (45177358764).

Almost surely, 2^90354717527 is an apocalyptic number.

90354717527 is a deficient number, since it is larger than the sum of its proper divisors (1).

90354717527 is an equidigital number, since it uses as much as digits as its factorization.

90354717527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1852200, while the sum is 50.

The spelling of 90354717527 in words is "ninety billion, three hundred fifty-four million, seven hundred seventeen thousand, five hundred twenty-seven".