210798462961 has 4 divisors (see below), whose sum is σ = 212194479424. Its totient is φ = 209402446500.

The previous prime is 210798462937. The next prime is 210798463037. The reversal of 210798462961 is 169264897012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210798462961 - 2³⁵ = 176438724593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210798462661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698008005 + ... + 698008306.

It is an arithmetic number, because the mean of its divisors is an integer number (53048619856).

Almost surely, 2^210798462961 is an apocalyptic number.

It is an amenable number.

210798462961 is a deficient number, since it is larger than the sum of its proper divisors (1396016463).

210798462961 is a wasteful number, since it uses less digits than its factorization.

210798462961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396016462.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 210798462961 in words is "two hundred ten billion, seven hundred ninety-eight million, four hundred sixty-two thousand, nine hundred sixty-one".