20248279889 has 8 divisors (see below), whose sum is σ = 20912236800. Its totient is φ = 19584997200.

The previous prime is 20248279871. The next prime is 20248279897. The reversal of 20248279889 is 98897284202.

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

It is a cyclic number.

It is not a de Polignac number, because 20248279889 - 2⁸ = 20248279633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20248279829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107147 + ... + 227984.

It is an arithmetic number, because the mean of its divisors is an integer number (2614029600).

Almost surely, 2^20248279889 is an apocalyptic number.

It is an amenable number.

20248279889 is a deficient number, since it is larger than the sum of its proper divisors (663956911).

20248279889 is a wasteful number, since it uses less digits than its factorization.

20248279889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337111.

The product of its (nonzero) digits is 9289728, while the sum is 59.

The spelling of 20248279889 in words is "twenty billion, two hundred forty-eight million, two hundred seventy-nine thousand, eight hundred eighty-nine".