9802952505 has 120 divisors (see below), whose sum is σ = 19281494232. Its totient is φ = 4748212224.

The previous prime is 9802952407. The next prime is 9802952513. The reversal of 9802952505 is 5052592089.

9802952505 is a `hidden beast` number, since 98 + 0 + 2 + 9 + 52 + 505 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 1162878201 + 8640074304 = 34101^2 + 92952^2 .

It is not a de Polignac number, because 9802952505 - 2⁷ = 9802952377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 5789439 + ... + 5791131.

Almost surely, 2^9802952505 is an apocalyptic number.

It is an amenable number.

9802952505 is a deficient number, since it is larger than the sum of its proper divisors (9478541727).

9802952505 is a wasteful number, since it uses less digits than its factorization.

9802952505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1747 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The square root of 9802952505 is about 99009.8606452913. The cubic root of 9802952505 is about 2140.1898472649.

The spelling of 9802952505 in words is "nine billion, eight hundred two million, nine hundred fifty-two thousand, five hundred five".