9799420418 has 4 divisors (see below), whose sum is σ = 14699130630. Its totient is φ = 4899710208.

The previous prime is 9799420417. The next prime is 9799420451. The reversal of 9799420418 is 8140249979.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7467206569 + 2332213849 = 86413^2 + 48293^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9799420418.

It is not an unprimeable number, because it can be changed into a prime (9799420417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2449855103 + ... + 2449855106.

Almost surely, 2^9799420418 is an apocalyptic number.

9799420418 is a deficient number, since it is larger than the sum of its proper divisors (4899710212).

9799420418 is a wasteful number, since it uses less digits than its factorization.

9799420418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899710211.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 9799420418 is about 98992.0219916737. The cubic root of 9799420418 is about 2139.9327735309.

The spelling of 9799420418 in words is "nine billion, seven hundred ninety-nine million, four hundred twenty thousand, four hundred eighteen".