90146263605779 has 2 divisors, whose sum is σ = 90146263605780. Its totient is φ = 90146263605778.

The previous prime is 90146263605689. The next prime is 90146263605803. The reversal of 90146263605779 is 97750636264109.

It is a strong prime.

It is an emirp because it is prime and its reverse (97750636264109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90146263605779 - 2³⁶ = 90077544129043 is a prime.

It is not a weakly prime, because it can be changed into another prime (90146263605379) 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, 45073131802889 + 45073131802890.

It is an arithmetic number, because the mean of its divisors is an integer number (45073131802890).

Almost surely, 2^{90146263605779} is an apocalyptic number.

90146263605779 is a deficient number, since it is larger than the sum of its proper divisors (1).

90146263605779 is an equidigital number, since it uses as much as digits as its factorization.

90146263605779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102876480, while the sum is 65.

The spelling of 90146263605779 in words is "ninety trillion, one hundred forty-six billion, two hundred sixty-three million, six hundred five thousand, seven hundred seventy-nine".