64650412256527 has 2 divisors, whose sum is σ = 64650412256528. Its totient is φ = 64650412256526.

The previous prime is 64650412256491. The next prime is 64650412256537. The reversal of 64650412256527 is 72565221405646.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64650412256527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64650412256537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32325206128263 + 32325206128264.

It is an arithmetic number, because the mean of its divisors is an integer number (32325206128264).

Almost surely, 2^{64650412256527} is an apocalyptic number.

64650412256527 is a deficient number, since it is larger than the sum of its proper divisors (1).

64650412256527 is an equidigital number, since it uses as much as digits as its factorization.

64650412256527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192000, while the sum is 55.

The spelling of 64650412256527 in words is "sixty-four trillion, six hundred fifty billion, four hundred twelve million, two hundred fifty-six thousand, five hundred twenty-seven".