9122561768 has 16 divisors (see below), whose sum is σ = 17146630500. Its totient is φ = 4550126976.

The previous prime is 9122561759. The next prime is 9122561821. The reversal of 9122561768 is 8671652219.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6658233604 + 2464328164 = 81598^2 + 49642^2 .

It is a super-2 number, since 2×9122561768² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390763 + ... + 1397306.

Almost surely, 2^9122561768 is an apocalyptic number.

It is an amenable number.

9122561768 is a deficient number, since it is larger than the sum of its proper divisors (8024068732).

9122561768 is a wasteful number, since it uses less digits than its factorization.

9122561768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788484 (or 2788480 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The square root of 9122561768 is about 95512.1027304917. The cubic root of 9122561768 is about 2089.4834592624.

The spelling of 9122561768 in words is "nine billion, one hundred twenty-two million, five hundred sixty-one thousand, seven hundred sixty-eight".