90151127281819 has 2 divisors, whose sum is σ = 90151127281820. Its totient is φ = 90151127281818.

The previous prime is 90151127281769. The next prime is 90151127281837. The reversal of 90151127281819 is 91818272115109.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90151127281819 - 2³³ = 90142537347227 is a prime.

It is a super-2 number, since 2×90151127281819² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90151127281819.

It is not a weakly prime, because it can be changed into another prime (90151127281849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45075563640909 + 45075563640910.

It is an arithmetic number, because the mean of its divisors is an integer number (45075563640910).

Almost surely, 2^{90151127281819} is an apocalyptic number.

90151127281819 is a deficient number, since it is larger than the sum of its proper divisors (1).

90151127281819 is an equidigital number, since it uses as much as digits as its factorization.

90151127281819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 55.

The spelling of 90151127281819 in words is "ninety trillion, one hundred fifty-one billion, one hundred twenty-seven million, two hundred eighty-one thousand, eight hundred nineteen".