21056595892298 has 16 divisors (see below), whose sum is σ = 31940113612680. Its totient is φ = 10409893824000.

The previous prime is 21056595892289. The next prime is 21056595892309. The reversal of 21056595892298 is 89229859565012.

It can be written as a sum of positive squares in 4 ways, for example, as 20927669654329 + 128926237969 = 4574677^2 + 359063^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18071858 + ... + 19201698.

Almost surely, 2^{21056595892298} is an apocalyptic number.

21056595892298 is a deficient number, since it is larger than the sum of its proper divisors (10883517720382).

21056595892298 is a wasteful number, since it uses less digits than its factorization.

21056595892298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234633.

The product of its (nonzero) digits is 279936000, while the sum is 71.

The spelling of 21056595892298 in words is "twenty-one trillion, fifty-six billion, five hundred ninety-five million, eight hundred ninety-two thousand, two hundred ninety-eight".