3505245172900 has 27 divisors (see below), whose sum is σ = 7606422652801. Its totient is φ = 1402090580240.

The previous prime is 3505245172889. The next prime is 3505245172901. The reversal of 3505245172900 is 92715425053.

It is a happy number.

The square root of 3505245172900 is 1872230.

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., 1261888262244 + 2243356910656 = 1123338^2 + 1497784^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3505245172901) 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, 18628689 + ... + 18815911.

Almost surely, 2^{3505245172900} is an apocalyptic number.

3505245172900 is the 1872230-th square number.

It is an amenable number.

3505245172900 is an abundant number, since it is smaller than the sum of its proper divisors (4101177479901).

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

3505245172900 is an frugal number, since it uses more digits than its factorization.

3505245172900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374460 (or 187230 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 3505245172900 in words is "three trillion, five hundred five billion, two hundred forty-five million, one hundred seventy-two thousand, nine hundred".