62768667641 has 2 divisors, whose sum is σ = 62768667642. Its totient is φ = 62768667640.

The previous prime is 62768667631. The next prime is 62768667683. The reversal of 62768667641 is 14676686726.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46384667641 + 16384000000 = 215371^2 + 128000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-62768667641 is a prime.

It is not a weakly prime, because it can be changed into another prime (62768667631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31384333820 + 31384333821.

It is an arithmetic number, because the mean of its divisors is an integer number (31384333821).

Almost surely, 2^62768667641 is an apocalyptic number.

It is an amenable number.

62768667641 is a deficient number, since it is larger than the sum of its proper divisors (1).

62768667641 is an equidigital number, since it uses as much as digits as its factorization.

62768667641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24385536, while the sum is 59.

The spelling of 62768667641 in words is "sixty-two billion, seven hundred sixty-eight million, six hundred sixty-seven thousand, six hundred forty-one".