10097516720281 has 3 divisors (see below), whose sum is σ = 10097519897941. Its totient is φ = 10097513542622.

The previous prime is 10097516720197. The next prime is 10097516720293. The reversal of 10097516720281 is 18202761579001.

The square root of 10097516720281 is 3177659.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 10097516720281 - 2²⁵ = 10097483165849 is a prime.

It is a super-2 number, since 2×10097516720281² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10097516720881) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1588830 + ... + 4766488.

Almost surely, 2^{10097516720281} is an apocalyptic number.

10097516720281 is the 3177659-th square number.

10097516720281 is the 1588830-th centered octagonal number.

It is an amenable number.

10097516720281 is a deficient number, since it is larger than the sum of its proper divisors (3177660).

10097516720281 is an frugal number, since it uses more digits than its factorization.

10097516720281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6355318 (or 3177659 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 49.

Multiplying 10097516720281 by its sum of digits (49), we get a square (494778319293769 = 22243613²).

The spelling of 10097516720281 in words is "ten trillion, ninety-seven billion, five hundred sixteen million, seven hundred twenty thousand, two hundred eighty-one".