20457284411 has 2 divisors, whose sum is σ = 20457284412. Its totient is φ = 20457284410.

The previous prime is 20457284399. The next prime is 20457284453. The reversal of 20457284411 is 11448275402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20457284411 - 2³⁰ = 19383542587 is a prime.

It is not a weakly prime, because it can be changed into another prime (20457284461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10228642205 + 10228642206.

It is an arithmetic number, because the mean of its divisors is an integer number (10228642206).

Almost surely, 2^20457284411 is an apocalyptic number.

20457284411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20457284411 is an equidigital number, since it uses as much as digits as its factorization.

20457284411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71680, while the sum is 38.

Subtracting from 20457284411 its reverse (11448275402), we obtain a palindrome (9009009009).

The spelling of 20457284411 in words is "twenty billion, four hundred fifty-seven million, two hundred eighty-four thousand, four hundred eleven".