210928014361 has 9 divisors (see below), whose sum is σ = 214471022493. Its totient is φ = 207442621920.

The previous prime is 210928014347. The next prime is 210928014433. The reversal of 210928014361 is 163410829012.

The square root of 210928014361 is 459269.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 103671764361 + 107256250000 = 321981^2 + 327500^2 .

It is a de Polignac number, because none of the positive numbers 2^k-210928014361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210928014361.

It is not an unprimeable number, because it can be changed into a prime (210928014761) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 28011645 + ... + 28019173.

Almost surely, 2^210928014361 is an apocalyptic number.

210928014361 is the 459269-th square number.

210928014361 is the 229635-th centered octagonal number.

It is an amenable number.

210928014361 is a deficient number, since it is larger than the sum of its proper divisors (3543008132).

210928014361 is an frugal number, since it uses more digits than its factorization.

210928014361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15180 (or 7590 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 210928014361 in words is "two hundred ten billion, nine hundred twenty-eight million, fourteen thousand, three hundred sixty-one".