90681964183 has 8 divisors (see below), whose sum is σ = 95939244720. Its totient is φ = 85473138240.

The previous prime is 90681964133. The next prime is 90681964193. The reversal of 90681964183 is 38146918609.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90681964183 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 (90681964103) 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 in 7 ways as a sum of consecutive naturals, for example, 12109798 + ... + 12117283.

It is an arithmetic number, because the mean of its divisors is an integer number (11992405590).

Almost surely, 2^90681964183 is an apocalyptic number.

90681964183 is a deficient number, since it is larger than the sum of its proper divisors (5257280537).

90681964183 is a wasteful number, since it uses less digits than its factorization.

90681964183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24227297.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 90681964183 in words is "ninety billion, six hundred eighty-one million, nine hundred sixty-four thousand, one hundred eighty-three".