10907504721 has 27 divisors (see below), whose sum is σ = 16294423977. Its totient is φ = 7030833480.

The previous prime is 10907504719. The next prime is 10907504767. The reversal of 10907504721 is 12740570901.

It is a happy number.

The square root of 10907504721 is 104439.

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

It is not a de Polignac number, because 10907504721 - 2¹ = 10907504719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10907504701) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9712266 + ... + 9713388.

Almost surely, 2^10907504721 is an apocalyptic number.

10907504721 is the 104439-th square number.

10907504721 is the 52220-th centered octagonal number.

It is an amenable number.

10907504721 is a deficient number, since it is larger than the sum of its proper divisors (5386919256).

10907504721 is an frugal number, since it uses more digits than its factorization.

10907504721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

Multiplying 10907504721 by its sum of digits (36), we get a square (392670169956 = 626634²).

The spelling of 10907504721 in words is "ten billion, nine hundred seven million, five hundred four thousand, seven hundred twenty-one".