63640735325743 has 2 divisors, whose sum is σ = 63640735325744. Its totient is φ = 63640735325742.

The previous prime is 63640735325677. The next prime is 63640735325767. The reversal of 63640735325743 is 34752353704636.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63640735325743 - 2⁴⁵ = 28456363236911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63640735325143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31820367662871 + 31820367662872.

It is an arithmetic number, because the mean of its divisors is an integer number (31820367662872).

Almost surely, 2^{63640735325743} is an apocalyptic number.

63640735325743 is a deficient number, since it is larger than the sum of its proper divisors (1).

63640735325743 is an equidigital number, since it uses as much as digits as its factorization.

63640735325743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 114307200, while the sum is 58.

The spelling of 63640735325743 in words is "sixty-three trillion, six hundred forty billion, seven hundred thirty-five million, three hundred twenty-five thousand, seven hundred forty-three".