10980734521 has 3 divisors (see below), whose sum is σ = 10980839311. Its totient is φ = 10980629732.

The previous prime is 10980734477. The next prime is 10980734617. The reversal of 10980734521 is 12543708901.

The square root of 10980734521 is 104789.

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 can be written as a sum of positive squares in only one way, i.e., 152250921 + 10828483600 = 12339^2 + 104060^2 .

It is not a de Polignac number, because 10980734521 - 2⁷ = 10980734393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10980744521) 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, 52395 + ... + 157183.

Almost surely, 2^10980734521 is an apocalyptic number.

10980734521 is the 104789-th square number.

10980734521 is the 52395-th centered octagonal number.

It is an amenable number.

10980734521 is a deficient number, since it is larger than the sum of its proper divisors (104790).

10980734521 is an frugal number, since it uses more digits than its factorization.

10980734521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209578 (or 104789 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 10980734521 in words is "ten billion, nine hundred eighty million, seven hundred thirty-four thousand, five hundred twenty-one".