62681617217 has 2 divisors, whose sum is σ = 62681617218. Its totient is φ = 62681617216.

The previous prime is 62681617109. The next prime is 62681617277. The reversal of 62681617217 is 71271618626.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62632069696 + 49547521 = 250264^2 + 7039^2 .

It is a cyclic number.

It is not a de Polignac number, because 62681617217 - 2¹⁴ = 62681600833 is a prime.

It is not a weakly prime, because it can be changed into another prime (62681617277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31340808608 + 31340808609.

It is an arithmetic number, because the mean of its divisors is an integer number (31340808609).

Almost surely, 2^62681617217 is an apocalyptic number.

It is an amenable number.

62681617217 is a deficient number, since it is larger than the sum of its proper divisors (1).

62681617217 is an equidigital number, since it uses as much as digits as its factorization.

62681617217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 47.

The spelling of 62681617217 in words is "sixty-two billion, six hundred eighty-one million, six hundred seventeen thousand, two hundred seventeen".