27269998722 has 18 divisors (see below), whose sum is σ = 59086515267. Its totient is φ = 9089766036.

The previous prime is 27269998709. The next prime is 27269998727. The reversal of 27269998722 is 22789996272.

It can be written as a sum of positive squares in only one way, i.e., 13634999361 + 13634999361 = 116769^2 + 116769^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=116769.

It is a self number, because there is not a number n which added to its sum of digits gives 27269998722.

It is not an unprimeable number, because it can be changed into a prime (27269998727) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 681153 + ... + 720075.

Almost surely, 2^27269998722 is an apocalyptic number.

27269998722 is an abundant number, since it is smaller than the sum of its proper divisors (31816516545).

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

27269998722 is an frugal number, since it uses more digits than its factorization.

27269998722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77854 (or 38928 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 27269998722 in words is "twenty-seven billion, two hundred sixty-nine million, nine hundred ninety-eight thousand, seven hundred twenty-two".