234780816511 has 2 divisors, whose sum is σ = 234780816512. Its totient is φ = 234780816510.

The previous prime is 234780816383. The next prime is 234780816553. The reversal of 234780816511 is 115618087432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 234780816511 - 2⁷ = 234780816383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234780016511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117390408255 + 117390408256.

It is an arithmetic number, because the mean of its divisors is an integer number (117390408256).

Almost surely, 2^234780816511 is an apocalyptic number.

234780816511 is a deficient number, since it is larger than the sum of its proper divisors (1).

234780816511 is an equidigital number, since it uses as much as digits as its factorization.

234780816511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 234780816511 in words is "two hundred thirty-four billion, seven hundred eighty million, eight hundred sixteen thousand, five hundred eleven".