611784882497 has 2 divisors, whose sum is σ = 611784882498. Its totient is φ = 611784882496.

The previous prime is 611784882439. The next prime is 611784882539. The reversal of 611784882497 is 794288487116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 589576729921 + 22208152576 = 767839^2 + 149024^2 .

It is a cyclic number.

It is not a de Polignac number, because 611784882497 - 2¹² = 611784878401 is a prime.

It is not a weakly prime, because it can be changed into another prime (611784882437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305892441248 + 305892441249.

It is an arithmetic number, because the mean of its divisors is an integer number (305892441249).

Almost surely, 2^611784882497 is an apocalyptic number.

It is an amenable number.

611784882497 is a deficient number, since it is larger than the sum of its proper divisors (1).

611784882497 is an equidigital number, since it uses as much as digits as its factorization.

611784882497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43352064, while the sum is 65.

The spelling of 611784882497 in words is "six hundred eleven billion, seven hundred eighty-four million, eight hundred eighty-two thousand, four hundred ninety-seven".