20741480493 has 16 divisors (see below), whose sum is σ = 28009751616. Its totient is φ = 13651222400.

The previous prime is 20741480489. The next prime is 20741480509. The reversal of 20741480493 is 39408414702.

It is a cyclic number.

It is not a de Polignac number, because 20741480493 - 2² = 20741480489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20741480413) 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, 6505 + ... + 203777.

It is an arithmetic number, because the mean of its divisors is an integer number (1750609476).

Almost surely, 2^20741480493 is an apocalyptic number.

It is an amenable number.

20741480493 is a deficient number, since it is larger than the sum of its proper divisors (7268271123).

20741480493 is a wasteful number, since it uses less digits than its factorization.

20741480493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197724.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 20741480493 in words is "twenty billion, seven hundred forty-one million, four hundred eighty thousand, four hundred ninety-three".