90533381263 has 4 divisors (see below), whose sum is σ = 97497487528. Its totient is φ = 83569275000.

The previous prime is 90533381233. The next prime is 90533381273. The reversal of 90533381263 is 36218333509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36218333509 = 31 ⋅1168333339.

It is a cyclic number.

It is not a de Polignac number, because 90533381263 - 2⁵ = 90533381231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90533381233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3482053113 + ... + 3482053138.

It is an arithmetic number, because the mean of its divisors is an integer number (24374371882).

Almost surely, 2^90533381263 is an apocalyptic number.

90533381263 is a deficient number, since it is larger than the sum of its proper divisors (6964106265).

90533381263 is a wasteful number, since it uses less digits than its factorization.

90533381263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6964106264.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 90533381263 in words is "ninety billion, five hundred thirty-three million, three hundred eighty-one thousand, two hundred sixty-three".