90849984106 has 16 divisors (see below), whose sum is σ = 155931172416. Its totient is φ = 38888621856.

The previous prime is 90849984103. The next prime is 90849984161. The reversal of 90849984106 is 60148994809.

It is a happy number.

It is a super-2 number, since 2×90849984106² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90849984103) 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, 3911811 + ... + 3934966.

It is an arithmetic number, because the mean of its divisors is an integer number (9745698276).

Almost surely, 2^90849984106 is an apocalyptic number.

90849984106 is a deficient number, since it is larger than the sum of its proper divisors (65081188310).

90849984106 is a wasteful number, since it uses less digits than its factorization.

90849984106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847613.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The spelling of 90849984106 in words is "ninety billion, eight hundred forty-nine million, nine hundred eighty-four thousand, one hundred six".