60780236857 has 2 divisors, whose sum is σ = 60780236858. Its totient is φ = 60780236856.

The previous prime is 60780236791. The next prime is 60780236899. The reversal of 60780236857 is 75863208706.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53039932416 + 7740304441 = 230304^2 + 87979^2 .

It is a cyclic number.

It is not a de Polignac number, because 60780236857 - 2²⁷ = 60646019129 is a prime.

It is not a weakly prime, because it can be changed into another prime (60780216857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30390118428 + 30390118429.

It is an arithmetic number, because the mean of its divisors is an integer number (30390118429).

Almost surely, 2^60780236857 is an apocalyptic number.

It is an amenable number.

60780236857 is a deficient number, since it is larger than the sum of its proper divisors (1).

60780236857 is an equidigital number, since it uses as much as digits as its factorization.

60780236857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 60780236857 in words is "sixty billion, seven hundred eighty million, two hundred thirty-six thousand, eight hundred fifty-seven".