10997872722 has 12 divisors (see below), whose sum is σ = 23828724270. Its totient is φ = 3665957568.

The previous prime is 10997872709. The next prime is 10997872727. The reversal of 10997872722 is 22727879901.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8875335681 + 2122537041 = 94209^2 + 46071^2 .

It is not an unprimeable number, because it can be changed into a prime (10997872727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305496447 + ... + 305496482.

Almost surely, 2^10997872722 is an apocalyptic number.

10997872722 is an abundant number, since it is smaller than the sum of its proper divisors (12830851548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10997872722 is a wasteful number, since it uses less digits than its factorization.

10997872722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610992937 (or 610992934 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 10997872722 in words is "ten billion, nine hundred ninety-seven million, eight hundred seventy-two thousand, seven hundred twenty-two".