90063823381 has 16 divisors (see below), whose sum is σ = 105577310080. Its totient is φ = 75235366080.

The previous prime is 90063823357. The next prime is 90063823397. The reversal of 90063823381 is 18332836009.

It is not a de Polignac number, because 90063823381 - 2⁹ = 90063822869 is a prime.

It is a super-2 number, since 2×90063823381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90063823781) 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 15 ways as a sum of consecutive naturals, for example, 920991 + ... + 1014076.

It is an arithmetic number, because the mean of its divisors is an integer number (6598581880).

Almost surely, 2^90063823381 is an apocalyptic number.

It is an amenable number.

90063823381 is a deficient number, since it is larger than the sum of its proper divisors (15513486699).

90063823381 is a wasteful number, since it uses less digits than its factorization.

90063823381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935244.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 90063823381 in words is "ninety billion, sixty-three million, eight hundred twenty-three thousand, three hundred eighty-one".