90928191002 has 32 divisors (see below), whose sum is σ = 151336885248. Its totient is φ = 40624920000.

The previous prime is 90928191001. The next prime is 90928191047. The reversal of 90928191002 is 20019182909.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (90928191001) 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 15 ways as a sum of consecutive naturals, for example, 1951052 + ... + 1997112.

It is an arithmetic number, because the mean of its divisors is an integer number (4729277664).

Almost surely, 2^90928191002 is an apocalyptic number.

90928191002 is a deficient number, since it is larger than the sum of its proper divisors (60408694246).

90928191002 is a wasteful number, since it uses less digits than its factorization.

90928191002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47606.

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 90928191002 in words is "ninety billion, nine hundred twenty-eight million, one hundred ninety-one thousand, two".