90649705882 has 8 divisors (see below), whose sum is σ = 136138583700. Its totient is φ = 45270177984.

The previous prime is 90649705843. The next prime is 90649705921. The reversal of 90649705882 is 28850794609.

It is an interprime number because it is at equal distance from previous prime (90649705843) and next prime (90649705921).

It can be written as a sum of positive squares in 2 ways, for example, as 89621798161 + 1027907721 = 299369^2 + 32061^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27335407 + ... + 27338722.

Almost surely, 2^90649705882 is an apocalyptic number.

90649705882 is a deficient number, since it is larger than the sum of its proper divisors (45488877818).

90649705882 is a wasteful number, since it uses less digits than its factorization.

90649705882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54674960.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 90649705882 in words is "ninety billion, six hundred forty-nine million, seven hundred five thousand, eight hundred eighty-two".