10569690481 has 27 divisors (see below), whose sum is σ = 12993346251. Its totient is φ = 8571803184.

The previous prime is 10569690479. The next prime is 10569690487. The reversal of 10569690481 is 18409696501.

The square root of 10569690481 is 102809.

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

It can be written as a sum of positive squares in only one way, i.e., 672624225 + 9897066256 = 25935^2 + 99484^2 .

It is not a de Polignac number, because 10569690481 - 2¹ = 10569690479 is a prime.

It is a super-2 number, since 2×10569690481² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (10569690487) 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, 13673211 + ... + 13673983.

Almost surely, 2^10569690481 is an apocalyptic number.

10569690481 is the 102809-th square number.

10569690481 is the 51405-th centered octagonal number.

It is an amenable number.

10569690481 is a deficient number, since it is larger than the sum of its proper divisors (2423655770).

10569690481 is an frugal number, since it uses more digits than its factorization.

10569690481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

Multiplying 10569690481 by its sum of digits (49), we get a square (517914833569 = 719663²).

10569690481 divided by its sum of digits (49) gives a square (215707969 = 14687²).

The spelling of 10569690481 in words is "ten billion, five hundred sixty-nine million, six hundred ninety thousand, four hundred eighty-one".