49281824789 has 2 divisors, whose sum is σ = 49281824790. Its totient is φ = 49281824788.

The previous prime is 49281824719. The next prime is 49281824819. The reversal of 49281824789 is 98742818294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31155780100 + 18126044689 = 176510^2 + 134633^2 .

It is a cyclic number.

It is not a de Polignac number, because 49281824789 - 2³² = 44986857493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49281824719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24640912394 + 24640912395.

It is an arithmetic number, because the mean of its divisors is an integer number (24640912395).

Almost surely, 2^49281824789 is an apocalyptic number.

It is an amenable number.

49281824789 is a deficient number, since it is larger than the sum of its proper divisors (1).

49281824789 is an equidigital number, since it uses as much as digits as its factorization.

49281824789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18579456, while the sum is 62.

The spelling of 49281824789 in words is "forty-nine billion, two hundred eighty-one million, eight hundred twenty-four thousand, seven hundred eighty-nine".