64306211101997 has 2 divisors, whose sum is σ = 64306211101998. Its totient is φ = 64306211101996.

The previous prime is 64306211101987. The next prime is 64306211102053. The reversal of 64306211101997 is 79910111260346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50078423245321 + 14227787856676 = 7076611^2 + 3771974^2 .

It is a cyclic number.

It is not a de Polignac number, because 64306211101997 - 2¹⁸ = 64306210839853 is a prime.

It is a super-4 number, since 4×64306211101997⁴ (a number of 56 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64306211101927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32153105550998 + 32153105550999.

It is an arithmetic number, because the mean of its divisors is an integer number (32153105550999).

Almost surely, 2^{64306211101997} is an apocalyptic number.

It is an amenable number.

64306211101997 is a deficient number, since it is larger than the sum of its proper divisors (1).

64306211101997 is an equidigital number, since it uses as much as digits as its factorization.

64306211101997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 64306211101997 in words is "sixty-four trillion, three hundred six billion, two hundred eleven million, one hundred one thousand, nine hundred ninety-seven".