90146019563 has 2 divisors, whose sum is σ = 90146019564. Its totient is φ = 90146019562.

The previous prime is 90146019553. The next prime is 90146019647. The reversal of 90146019563 is 36591064109.

It is a weak prime.

It is an emirp because it is prime and its reverse (36591064109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90146019563 - 2¹² = 90146015467 is a prime.

It is not a weakly prime, because it can be changed into another prime (90146019533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45073009781 + 45073009782.

It is an arithmetic number, because the mean of its divisors is an integer number (45073009782).

Almost surely, 2^90146019563 is an apocalyptic number.

90146019563 is a deficient number, since it is larger than the sum of its proper divisors (1).

90146019563 is an equidigital number, since it uses as much as digits as its factorization.

90146019563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 90146019563 in words is "ninety billion, one hundred forty-six million, nineteen thousand, five hundred sixty-three".