20498293393 has 16 divisors (see below), whose sum is σ = 21663792000. Its totient is φ = 19341624960.

The previous prime is 20498293391. The next prime is 20498293397. The reversal of 20498293393 is 39339289402.

It is a cyclic number.

It is not a de Polignac number, because 20498293393 - 2¹ = 20498293391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20498293393.

It is not an unprimeable number, because it can be changed into a prime (20498293391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5941533 + ... + 5944981.

It is an arithmetic number, because the mean of its divisors is an integer number (1353987000).

Almost surely, 2^20498293393 is an apocalyptic number.

It is an amenable number.

20498293393 is a deficient number, since it is larger than the sum of its proper divisors (1165498607).

20498293393 is a wasteful number, since it uses less digits than its factorization.

20498293393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4632.

The product of its (nonzero) digits is 2519424, while the sum is 52.

The spelling of 20498293393 in words is "twenty billion, four hundred ninety-eight million, two hundred ninety-three thousand, three hundred ninety-three".