31454086609 has 27 divisors (see below), whose sum is σ = 36193683547. Its totient is φ = 27312362000.

The previous prime is 31454086607. The next prime is 31454086619. The reversal of 31454086609 is 90668045413.

The square root of 31454086609 is 177353.

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., 27127078209 + 4327008400 = 164703^2 + 65780^2 .

It is not a de Polignac number, because 31454086609 - 2¹ = 31454086607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31454086607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 44869959 + ... + 44870659.

Almost surely, 2^31454086609 is an apocalyptic number.

31454086609 is the 177353-rd square number.

31454086609 is the 88677-th centered octagonal number.

It is an amenable number.

31454086609 is a deficient number, since it is larger than the sum of its proper divisors (4739596938).

31454086609 is an frugal number, since it uses more digits than its factorization.

31454086609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 31454086609 in words is "thirty-one billion, four hundred fifty-four million, eighty-six thousand, six hundred nine".