31914750609 has 81 divisors (see below), whose sum is σ = 55095092091. Its totient is φ = 17750365920.

The previous prime is 31914750577. The next prime is 31914750611. The reversal of 31914750609 is 90605741913.

The square root of 31914750609 is 178647.

It is a perfect power (a square), and thus also a powerful number.

31914750609 is a `hidden beast` number, since 31 + 9 + 1 + 4 + 7 + 5 + 0 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 351675009 + 31563075600 = 18753^2 + 177660^2 .

It is not a de Polignac number, because 31914750609 - 2⁵ = 31914750577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31914750809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 176324499 + ... + 176324679.

Almost surely, 2^31914750609 is an apocalyptic number.

31914750609 is the 178647-th square number.

31914750609 is the 89324-th centered octagonal number.

It is an amenable number.

31914750609 is a deficient number, since it is larger than the sum of its proper divisors (23180341482).

31914750609 is an equidigital number, since it uses as much as digits as its factorization.

31914750609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 31914750609 in words is "thirty-one billion, nine hundred fourteen million, seven hundred fifty thousand, six hundred nine".