31727279348 has 6 divisors (see below), whose sum is σ = 55522738866. Its totient is φ = 15863639672.

The previous prime is 31727279347. The next prime is 31727279387. The reversal of 31727279348 is 84397272713.

It can be written as a sum of positive squares in only one way, i.e., 28291912804 + 3435366544 = 168202^2 + 58612^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31727279348.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31727279347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3965909915 + ... + 3965909922.

It is an arithmetic number, because the mean of its divisors is an integer number (9253789811).

Almost surely, 2^31727279348 is an apocalyptic number.

It is an amenable number.

31727279348 is a deficient number, since it is larger than the sum of its proper divisors (23795459518).

31727279348 is a wasteful number, since it uses less digits than its factorization.

31727279348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7931819841 (or 7931819839 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 53.

The spelling of 31727279348 in words is "thirty-one billion, seven hundred twenty-seven million, two hundred seventy-nine thousand, three hundred forty-eight".