10781818810624 has 27 divisors (see below), whose sum is σ = 21521626010983. Its totient is φ = 5390883136768.

The previous prime is 10781818810549. The next prime is 10781818810661. The reversal of 10781818810624 is 42601881818701.

It is a happy number.

The square root of 10781818810624 is 3283568.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 52434477 + ... + 52639699.

Almost surely, 2^{10781818810624} is an apocalyptic number.

10781818810624 is the 3283568-th square number.

It is an amenable number.

10781818810624 is a deficient number, since it is larger than the sum of its proper divisors (10739807200359).

10781818810624 is an frugal number, since it uses more digits than its factorization.

10781818810624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410462 (or 205225 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 55.

The spelling of 10781818810624 in words is "ten trillion, seven hundred eighty-one billion, eight hundred eighteen million, eight hundred ten thousand, six hundred twenty-four".