31704207445 has 8 divisors (see below), whose sum is σ = 38095047000. Its totient is φ = 25330033920.

The previous prime is 31704207433. The next prime is 31704207461. The reversal of 31704207445 is 54470240713.

It can be written as a sum of positive squares in 4 ways, for example, as 973065636 + 30731141809 = 31194^2 + 175303^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31704207445 - 2¹¹ = 31704205397 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4162320 + ... + 4169929.

It is an arithmetic number, because the mean of its divisors is an integer number (4761880875).

Almost surely, 2^31704207445 is an apocalyptic number.

It is an amenable number.

31704207445 is a deficient number, since it is larger than the sum of its proper divisors (6390839555).

31704207445 is an equidigital number, since it uses as much as digits as its factorization.

31704207445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8333015.

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 31704207445 in words is "thirty-one billion, seven hundred four million, two hundred seven thousand, four hundred forty-five".