210490096978 has 32 divisors (see below), whose sum is σ = 367517128320. Its totient is φ = 88552517760.

The previous prime is 210490096951. The next prime is 210490097039. The reversal of 210490096978 is 879690094012.

210490096978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 15 ways as a sum of consecutive naturals, for example, 272413 + ... + 703696.

It is an arithmetic number, because the mean of its divisors is an integer number (11484910260).

Almost surely, 2^210490096978 is an apocalyptic number.

210490096978 is a deficient number, since it is larger than the sum of its proper divisors (157027031342).

210490096978 is a wasteful number, since it uses less digits than its factorization.

210490096978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976402.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 210490096978 in words is "two hundred ten billion, four hundred ninety million, ninety-six thousand, nine hundred seventy-eight".