90863289623473 has 2 divisors, whose sum is σ = 90863289623474. Its totient is φ = 90863289623472.

The previous prime is 90863289623467. The next prime is 90863289623521. The reversal of 90863289623473 is 37432698236809.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57211781439409 + 33651508184064 = 7563847^2 + 5800992^2 .

It is a cyclic number.

It is not a de Polignac number, because 90863289623473 - 2⁹ = 90863289622961 is a prime.

It is a super-2 number, since 2×90863289623473² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90863289623273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45431644811736 + 45431644811737.

It is an arithmetic number, because the mean of its divisors is an integer number (45431644811737).

Almost surely, 2^{90863289623473} is an apocalyptic number.

It is an amenable number.

90863289623473 is a deficient number, since it is larger than the sum of its proper divisors (1).

90863289623473 is an equidigital number, since it uses as much as digits as its factorization.

90863289623473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564350976, while the sum is 70.

The spelling of 90863289623473 in words is "ninety trillion, eight hundred sixty-three billion, two hundred eighty-nine million, six hundred twenty-three thousand, four hundred seventy-three".