20009294248 has 16 divisors (see below), whose sum is σ = 37904205780. Its totient is φ = 9901506048.

The previous prime is 20009294243. The next prime is 20009294257. The reversal of 20009294248 is 84249290002.

It can be written as a sum of positive squares in 2 ways, for example, as 19565854884 + 443439364 = 139878^2 + 21058^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20009294248.

It is not an unprimeable number, because it can be changed into a prime (20009294243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12891811 + ... + 12893362.

Almost surely, 2^20009294248 is an apocalyptic number.

It is an amenable number.

20009294248 is a deficient number, since it is larger than the sum of its proper divisors (17894911532).

20009294248 is a wasteful number, since it uses less digits than its factorization.

20009294248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25785276 (or 25785272 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 20009294248 in words is "twenty billion, nine million, two hundred ninety-four thousand, two hundred forty-eight".